Mount Desert Island Research Articles

Induction of drug-metabolizing enzymes by polycyclic aromatic hydrocarbons: mechanisms, and some implications in environmental health research.

The mechanisms by which administration of polycyclic aromatic hydrocarbons (PAH) stimulates drug-metabolizing enzymes are summarized. The hepatic monooxygenase system of marine and freshwater fish is also induced by PAH-type compounds, including chlorinated dioxins and certain polychlorinated and polybrominated biphenyl isomers, and these chemicals are, or are suspected to be, toxic to humans. Consequently, there is considerable interest in whether or not PAH-type induction in fish can be used as a sentinel or early warning indicator for certain classes of toxic pollutants in the aquatic environment. We have investigated various aspects of PAH-type induction in marine fish and have found that approximately 50% of the winter flounder (Pseudopleuronectes americanus), captured near Mount Desert Island, Maine, appear to have induced hepatic monooxygenase systems, which suggests that they are exposed to PAH-type chemicals in the environment. The potential advantages and limitations of using PAH-type enzyme induction as a sentinel system for pollutants in aquatic ecosystems are discussed.

My forty years at the Mount Desert Island Biological Laboratory

Journal of Experimental ZoologyVolume 199, Issue 3 p. 299-307 Miscellaneous My forty years at the Mount Desert Island Biological Laboratory† Roy P. Forster, Roy P. ForsterSearch for more papers by this author Roy P. Forster, Roy P. ForsterSearch for more papers by this author First published: March 1977 https://doi.org/10.1002/jez.1401990303Citations: 1 † This talk was given as an informal after-dinner speech at the banquet in connection with the Symposium. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Citing Literature Volume199, Issue3March 1977Pages 299-307 RelatedInformation

Using a National Park for a Field Trip

E ACH SEPTEMBER THE SCIENCE department at Wachusett Regional High School conducts a camping trip to Acadia National Park, Mount Desert Island, Maine. The excursion, termed a Bio-Environmental Field Trip, is open to any students who have previously completed a course in biology. We limit the number of students on the trip to twenty-two because there are only two teachers on the trip with the students, and because we drive two vans for transportation.

High intertidal community organization on a rocky headland in Maine, USA

A mosaic patchwork of the barnacle Balanus balanoides L., the mussel Mytilus edulis L., and the alga Fucus vesiculosus L. was found in the transitional region between the mid and high intertidal zones on a rocky headland on Mount Desert Island, Maine, USA. The development of the mosaic was observed by following recruitment and survival of B. balanoides in denuded patches located at the same tidal level along a 60 m stretch of shore. Barnacle recruitment was least under canopies of F. vesiculosus and greatest in open areas kept moist at low tide by surf. Barnacle survival after settlement was least under the F. vesiculosus canopy due to the whiplash effect of the algal fronds in the surf and greatest in open areas free from competition from mussels. In open areas, early mortality was correlated with settlement density. In areas of dense settlement (60 spat cm-2) up to 90% mortality resulted within 5 months from crowding associated with growth. In older individuals crowding produced hummocks of elongated, weakly attached barnacles which were more prone to removal by surf than uncrowded barnacles. Mussels exerted competitive dominance over barnacles for space and the presence of mussel beds prevented further barnacle recruitment. Mussels suffered extensive mortality during winter storms when surf removed dense mats of weakly attached mussels. The patchy distribution of mussels and barnacles results from irregular rock substrata producing numerous environmental patches with respect to wave exposure and drainage at low tide, and from densitydependent mortality of both mussels and barnacles which creates patches of new colonizable space within each environmental patch.

Subsurface distribution of granitic rocks, south-central Maine

Two- and three-dimensional modeling of gravity data from the area north of Penobscot Bay in south-central Maine reveals that major granitic intrusive masses there are tabular in shape. Batholiths are less than 7 km thick on the average and have nearly vertical contacts. Smaller granitic bodies average less than 3 km thick. Structural and contact metamorphic features of granite and surrounding rocks suggest that felsic masses of batholithic proportions were emplaced at a late stage in the tectonic history of the area. Model configurations combined with structural evidence indicate that the batholiths were probably intruded along faults. Several previously unmapped felsic masses have been located and defined, mainly within the Passagassawakeag Gneiss. The largest of these is the Stricklen Ridge Granite, an igneous mass up to 3 km thick and 11 km long. The near-surface dip of the Passagassawakeag Gneiss contact northeast of the Mount Waldo batholith is calculated to be 45°N to 55°N on the basis of gravity evidence. A sill-like tongue of high-density rocks related to the Bays-of-Maine complex has been postulated to extend under the Ellsworth Schist north from Mount Desert Island and approach the Lucerne batholith near its southeastern contact. The Lucerne Granite is bounded on the north by a low-density body, proposed to represent a distinctly earlier felsic intrusion, now covered by a thin veneer of Lucerne Granite.

Microfilaments in the polar lobe constriction of fertilized eggs of Ilyanassa obsoleta.

GARY W. CONRAD, DANIEL C . WILLIAMS, F. RUDOLF TURNER, KENNETH M. NEWROCK and RUDOLF A. RAFF. From the Division of Biology, Kansas State University, Manhattan, Kansas 66506, Mount Desert Island Biological Laboratory, Salisbury Cove, Maine 04672, and Department of Zoology, Indiana University, Bloomington, Indiana 47401 . Drs. Conrad and Williams are from Kansas State University and Mount Desert Island Biological Laboratory . Drs . Turner, Newrock, and Raff are from Indiana University.

James A. Herne and Lamoine, Maine

JAMOINE, Maine, today is as tranquil and idyllic as James A. Herne, American dramatist, found it over threequarters of a century ago. Across Frenchman's Bay, Bar Harbor on Mount Desert Island swarms with tourists, while Lamoine State Park, sloping from main street in Lamoine to edge of bay, has only an occasional visitor. This gentle slope was once Shore Acres, as pioneer realist called it in his play by that name. The historical reality of Lamoine's land boom, which became basis for Herne's Shore A cres, adds another dimension to our understanding of his best play. First, however, we must see just how dramatist adapted this reality to his own concept of realism and to his aesthetic principles. In Shore Acres Herne gave fullest expression to what life had taught him, to what he believed life to be.' His aesthetic -art for truth's sake-is more applicable to Shore Acres than to any of his other plays. In fact, his essay, Art for Truth's Sake in Drama, is directly derived from few weeks he spent in Lamoine, Maine, and from his popular Shore Acres. It is this drama that develops latent beauty of so-called commonplaces of life, that dignifies labor and reveals, in character of Uncle Nathan'l Berry, the divinity of

Food Interrelationships of Salmon, Trout, Alewives, and Smelt in a Maine Lake

Food habits of landlocked salmon (Salmo salar), brook trout (Salvelinus fontinalis), landlocked alewives (Alosa pseudoharengus), and American smelt (Osmerus mordax) were studied in Echo Lake, Mount Desert Island, Maine, from June, 1967, to May, 1968. Landlocked alewives were introduced into Echo Lake as adults taken from Cayuga Lake, New York, in 1966. Annual salmon diet consisted of invertebrates (mainly insects) and several forage fishes [alewives, smelt, sticklebacks, (Pungitius pungitius), and killifish (Fundulus diaphanus)]. Smelt were eaten during the entire year, killifish and sticklebacks during summer, and alewives only during spring. Brook trout had similar food habits except that sticklebacks were used throughout the year, and invertebrates constituted a higher proportion of their overall diet. Brook trout fed heavily on isopods (Asellus sp.) during winter and early spring. Alewives fed extensively on plankton with insects constituting important food only during summer months. Smelt utilized a higher proportion of insects and isopods than did alewives, but fed mainly on plankton. Landlocked alewives were utilized only to a limited extent by salmon and brook trout, but would likely be preyed upon more heavily by larger fish.

Biology of the Northern Shrimp, Pandalus borealis, in the Gulf of Maine

Northern shrimp from offshore waters in the Gulf of Maine were studied to determine their occurrence and to learn some major features of their life history. The area sampled extends from Nova Scotia, Canada, to Long Island, New York. Northern shrimp were found only in the western portion of the Gulf of Maine, where they were present throughout the year, and at two isolated localities southeast of Nova Scotia. Abundance was highest in moderate depths in the vicinity of Jeffrys and Cashes Ledges and southeast of Mount Desert Island, Maine, and lowest in the deeper, offshore areas in the west-central part of the Gulf. High water temperatures appear to limit the southward extension of this species off New England. Within the Gulf of Maine this shrimp occurs on fine-grained bottom sediments, such as clay, silty sand, and glacial till, which contain relatively large amounts of organic matter. Average life span is about 3 1/2 years and may extend to 4 1/2 years for a small portion of the population. Northern shrimp are protandric hermaphrodites, functioning first as males. Spawning is in August and September. Most of the shrimp spawn only once as females—about 20% at 2 1/2 years of age, 70% at 3 1/2 years, and 10% at 4 1/2 years. The eggs remain attached to the pleopods for about 6 months and hatch in the spring (March and April). Egg-bearing females migrate from the deeper (offshore) waters to shallow (inshore) areas during the maturation period. It is the egg-bearing females, which are concentrated near the mouths of estuaries and other nearshore areas, that make up the bulk of the commercial catch. The number of eggs per clutch increases with shrimp size and averages 2,400 (range, 800 to 3,400). Length-weight relations are similar for males and nonovigerous females; ovigerous females are about 1.4 g heavier for any given length than the nonovigerous ones. Growth rate of the Gulf of Maine population is faster at ages of 2 years and older than that of any other population of this species reported to date.

THE PHARMACOLOGY OF MERCURIAL DIURETICS*

Annals of the New York Academy of SciencesVolume 139, Issue 2 p. 362-374 THE PHARMACOLOGY OF MERCURIAL DIURETICS* E. J. Cafruny, E. J. Cafruny Departments of Pharmacology, University of Minnesota Medical School, Minneapolis, Minn.; and Upstate Medical Center, State University of New York, Syracuse, N. Y.Search for more papers by this authorK. C. Cho, K. C. Cho Departments of Pharmacology, University of Minnesota Medical School, Minneapolis, Minn.; and Upstate Medical Center, State University of New York, Syracuse, N. Y. Postdoctoral fellow of the China Medical Board, New York, N. Y.Search for more papers by this authorR. Z. Gussin, R. Z. Gussin Departments of Pharmacology, University of Minnesota Medical School, Minneapolis, Minn.; and Upstate Medical Center, State University of New York, Syracuse, N. Y. Department of Pharmacology, State University of New York, Upstate Medical Center, Syracuse, N. Y.Search for more papers by this author E. J. Cafruny, E. J. Cafruny Departments of Pharmacology, University of Minnesota Medical School, Minneapolis, Minn.; and Upstate Medical Center, State University of New York, Syracuse, N. Y.Search for more papers by this authorK. C. Cho, K. C. Cho Departments of Pharmacology, University of Minnesota Medical School, Minneapolis, Minn.; and Upstate Medical Center, State University of New York, Syracuse, N. Y. Postdoctoral fellow of the China Medical Board, New York, N. Y.Search for more papers by this authorR. Z. Gussin, R. Z. Gussin Departments of Pharmacology, University of Minnesota Medical School, Minneapolis, Minn.; and Upstate Medical Center, State University of New York, Syracuse, N. Y. Department of Pharmacology, State University of New York, Upstate Medical Center, Syracuse, N. Y.Search for more papers by this author First published: November 1966 https://doi.org/10.1111/j.1749-6632.1966.tb41210.xCitations: 12 * Work reported in this paper was supported by grants from the Office of Naval Research (Contract Nonr-1224 [26]) and the U. S. Public Health Service (AM 10240). Portions of the work were done at the University of Michigan, Ann Arbor, and at the Mount Desert Island Biological Laboratory, Salisbury Cove, Maine. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume139, Issue2The Physiology of Drug AgentsNovember 1966Pages 362-374 RelatedInformation

DISTRIBUTION OF URCEOLARIA SPINICOLA (CILIATA, PERITRICHIDA) ON THE SPINES OF THE SEA URCHIN STRONGYLOCENTROTUS DROEBACHIENSIS

1. At Mount Desert Island, Maine, Urceolaria spinicola is of general occurrence on the spines of Strongylocentrotus droebachiensis. Two aspects of the urchinciliate relationship were studied, largely on urchins from Frenchman Bay: the occurrence of the ciliate on urchins of different sizes and its distribution on spines of different lengths.2. The density of the urceolaria population was highest on urchins measuring 24-60 mm. in diameter (test only), assumed to be 2-5 years of age (average number of ciliates per spine, 27). Smaller and therefore younger urchins (diameter, 9-18 mm.) had fewer per spine (average number, 9). On the largest urchins (62-74 mm.), assumed to be at least 6 years of age, urceolarias were extremely scarce (average number per spine, 3). Indeed, many urchins of this size had no ciliates whatsoever.3. The distribution on spines of different lengths was studied with special care on 41-mm. urchins. The smallest spines (length, 0.6-0.9 mm.) had relatively few urceolarias per spine (average number, 9), whereas spines measuring 1.0-4.9 mm. in length had the largest number per spine (average, 36). The remaining spines (length, 5.0-16.0 mm.) were seriated according to length. On all the sizes, the average number of urceolarias per spine was well below the maximum of 36 and the number decreased as the length of the spine increased. Thus, many of the longest spines lacked ciliates. On spines measuring 0.6 to about 3.0 mm. in length, the urceolarias were distributed uniformly along the length of the spine; on spines longer than 3.0 mm., they were concentrated on the basal half of the spine.4. The distribution of U. spinicola on the spines could not be related convincingly to any of the following factors: degree of ciliation of the spines, contact of the spines with one another, presence of water currents in the environment or availability of bacterial food on the surface of the urchin. Therefore, it is concluded tentatively that the distribution is related to the intrinsic properties of the spine epidermis, perhaps to the distribution of gland cells in it.

Spruce‐Fir Forests of the Coast of Maine

In the non-montane regions of eastern North America, forests dominated by spruce and fir reach their southern limits on the coasts of Maine and Nova Scotia. The Maine coast is famous for its irregularity and the multitude of islands and peninsulas extending into the cool waters of the Gulf of Maine. Although the coastal region is occupied by forests mostly of mixed character, at exposed shore locations along the entire coast, stands dominated by spruce and fir occur. In eastern Maine, such stands are more common. and extend further inland. The percentage of spruce and fir in these forests appears to be correlated with the intensity of marine influence on the climate of the site. The relationship between the cool maritime climate and the presence of boreal species (e.g. Empetrum nigrum) along the immediate shore has been recognized for some time (Rand & Redfield, 1894; Redfield, 1885, 1886, 1893; Rand, 1900; Hill, 1919; Wherry, 1928). Redfield (1886) noted that the forests of the outer islands in the Mount Desert Island area were dominated by spruce (Picea spp.), balsam fir (Abies balsamea) and paper birch (Betula papyrifera). Hill (1923) described the vegetation of the Penobscot Bay area, claiming that the spruce-fir forests at seaward locations constitute a physiographic climax, differing from the northern hardwoods-hemlock-spruce-fir climax of the area because of shallow acidic soils and local cool climate. Moore & Taylor (1927), in describing the vegetation of Mount Desert Island, point out that forests dominated by red spruce (Picea rubens) covered a large portion of the island. These forests were thought to be the climax type for most of the island, with a northern hardwoods-spruce climax limited to a few central

ACID-BASE, FLUID AND ELECTROLYTE METABOLISM IN THE ELASMOBRANCH. II. TOTAL BODY, EXTRACELLULAR AND INTRACELLULAR WATER.

Journal of Cellular and Comparative PhysiologyVolume 64, Issue 3 p. 419-422 Article Acid-base, fluid and electrolyte metabolism in the elasmobranch†. II. Total body, extracellular and intracellular water Eugene D. Robin, Eugene D. Robin Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorGerald P. Rodnan, Gerald P. Rodnan Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorHerschel V. Murdaugh Jr., Herschel V. Murdaugh Jr. Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorMargaret Andrus, Margaret Andrus Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this author Eugene D. Robin, Eugene D. Robin Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorGerald P. Rodnan, Gerald P. Rodnan Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorHerschel V. Murdaugh Jr., Herschel V. Murdaugh Jr. Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorMargaret Andrus, Margaret Andrus Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pa., and the University of Alabama Medical Center, Birmingham, Ala., and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this author First published: December 1964 https://doi.org/10.1002/jcp.1030640313Citations: 4 † Supported in part by a grant (HE-05059) from the National Institutes of Health and in part by a grant from the Tuberculosis League of Pittsburgh. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Citing Literature Volume64, Issue3December 1964Pages 419-422 RelatedInformation

ACID-BASE, FLUID AND ELECTROLYTE METABOLISM IN THE ELASMOBRANCH. I. IONIC COMPOSITION OF ERYTHROCYTES, MUSCLE AND BRAIN.

Journal of Cellular and Comparative PhysiologyVolume 64, Issue 3 p. 409-418 Article Acid-base, fluid and electrolyte metabolism in the elasmobranch†. I. Ionic composition of erythrocytes, muscle and brain Eugene D. Robin, Eugene D. Robin Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and the University of Alabama Medical Center Birmingham, Alabama, and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorHerschel V. Murdaugh Jr., Herschel V. Murdaugh Jr. Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and the University of Alabama Medical Center Birmingham, Alabama, and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorEdgar Weiss, Edgar Weiss Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and the University of Alabama Medical Center Birmingham, Alabama, and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this author Eugene D. Robin, Eugene D. Robin Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and the University of Alabama Medical Center Birmingham, Alabama, and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorHerschel V. Murdaugh Jr., Herschel V. Murdaugh Jr. Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and the University of Alabama Medical Center Birmingham, Alabama, and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this authorEdgar Weiss, Edgar Weiss Departments of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, and the University of Alabama Medical Center Birmingham, Alabama, and the Mount Desert Island Biological Laboratory, Salisbury Cove, MaineSearch for more papers by this author First published: December 1964 https://doi.org/10.1002/jcp.1030640312Citations: 14 † Supported in part by a grant (HE-05059) from the National Institutes of Health and in part by a grant from the National Science Foundation. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume64, Issue3December 1964Pages 409-418 RelatedInformation

The Vertebrate Fauna of Isle au Haut, Maine

Isle au Haut, settled since 1792, is a remote of 4,700 acres in outer reaches of Penobscot Bay, Maine. Its historical background and environmental nature are briefly described. Listed are 5 species of freshwater fishes, 3 amphibians, 3 reptiles, 123 birds, and 15 mammals recorded there. These are based on observations and specimens collected during two weeks on in summer of 1963. Distributional implications of insular faunas such as this are discussed. INTRODUCTION Of myriad islands along Maine's drowned coastline, Isle au Haut, in outer waters of Penobscot Bay, in Knox County, is as remote from mainland as any except much smaller Monhegan, Machias Seal, and Matinicus islands, and Mount Desert Rock. Biologically, it has been explored only slightly. Since 1946, with large gift of land from heirs of Ernest W. Bowditch of Boston, major portion of Isle au Haut has been a part of Acadia National Park, although distant by 25 miles from headquarters area on Mount Desert Island. As yet has been little developed and pressure of summer tourists has not been felt. An inventory of fauna of Isle au Haut seems desirable, and this has been encouraged by Paul G. Favour, Jr., Park Naturalist based at Bar Harbor. As a result, it was my privilege to spend 12 days at Isle au Haut from July 24 to August 4, 1963. My son accompanied me during part of this time, and assisted with collections and observations over a large part of island. Local residents were most helpful and cooperative in providing information. The experience was delightful and unique, both sociologically and biologically. Incomplete as they necessarily were, after such a brief period on Isle au Haut, my findings are here presented as a basis from which future studies may be made. Acknowledgments.-Without assistance of many people this work would not have been accomplished. Paul G. Favour, Jr., helped with arrangements and expedited study in many ways. Much useful support was had from Pearl Prescott, Stanley E. Dodge, Virginia MacDonald, Lee 'Chapin, and Shirley J. Marine. Others who assisted in various ways (some identified by initials only in text) were following: Gordon 'Chapin (GC), Mabelle Chapin, Barbara D. DeWitt, George Greenlaw, Mrs. Fred Hoskins (FH), Ted Hoskins, Leon Liscomb, Bennie and Noyes MacDonald, Hollis Neville, and Milton Weller. To all of these I am deeply grateful. HISTORICAL BACKGROUND Isle au Haut, sometimes called outermost island in Penobscot Bay, was known to Indians, who camped here in summer. In their shell heaps and burial sites are found remains of deer, otter, mink, muskrat, and waterfowl. Samuel de Champlain, exploring coast in 1604, gave spot its present name, the high island variously spelled as Ille Haulte and l'isle haute in 1613 and 1632 editions of Les Voyages de la Nouvelle France occidentale. The nearby

Diabase-Granite Composite Dikes, with Pillow-Like Structure, Mount Desert Island, Maine

Dikes of granite crowded with rounded masses of diabase are described in detail and their origin discussed. Where diabase masses are closely packed, outcrops appear as diabase dikes cut by a network of granite veins or may resemble pillow lava insinuated by thin veins of granite. Veins appear non-dilational and of replacement origin. Margins of diabase masses are very fine grained and resemble diabasic magma chilled against granite. These zones are explained as secondary features formed largely by recrystallization of solidified diabase. Skialithic bodies are locally numerous within the dikes and resemble the diabase masses in size, shape, and disposition. They are considered to represent metasomatically transformed diabase. Many contain abundant small mafic patches, petrographically identical with the pseudochill zones, which are interpreted as diabase relicts. Angular gabbro xenoliths, locally derived, are common and may be enclosed by granite, diabase, or skialithic rock. A few are enclos...

The Story of Mount Desert Island

The Story of Mount Desert Island

Recent Changes in the Mammal Fauna of Mount Desert Island, Maine

Recent Changes in the Mammal Fauna of Mount Desert Island, Maine

Observations on Salt Balance and Behavior of Laysan and Black-Footed Albatrosses in Captivity

Observations on Salt Balance and Behavior of Laysan and Black-Footed Albatrosses in Captivity Get access Hubert Frings, Hubert Frings Department of Zoology and Entomology, Pennsylvania State University, University Park, Pennsylvania, and Mount Desert Island Biological Laboratories, Salisbury Cove, Maine Search for other works by this author on: Oxford Academic Google Scholar Mable Frings Mable Frings Department of Zoology and Entomology, Pennsylvania State University, University Park, Pennsylvania, and Mount Desert Island Biological Laboratories, Salisbury Cove, Maine Search for other works by this author on: Oxford Academic Google Scholar The Condor, Volume 61, Issue 5, 1 September 1959, Pages 305–314, https://doi.org/10.2307/1365123 Published: 01 September 1959

American Egret on Mount Desert Island, Maine

American Egret on Mount Desert Island, Maine