SYDNEY. Linnean Society of New South Wales, July 28.—C. T. White: On a small collection of plants from the Rigo district, Papua. Two species, one of Plectronia and one Jasminum, are described as new.—C. P. Alexander: The Trichoceridæ (Diptera) of Australia. One genus and four species are described as new. A key is given for the determination of the genera.—R. H. Cambage: Notes on the native flora of New South Wales. Part xi. Moree to Mungindi and Moonie R., with a description of a new species of Eucalyptus. The paper contains notes on the early exploration, topography, etc., and a list of the plants noticed. A comparison of this flora is made with that of Tasmania, in view of the dominating influence of climate on plant distribution.—G. H. Cunningham: Gasteromycetes of Australasia, (v.) The genus Calvatia. The genus may be separated from Lyco-perdon by the method of dehiscence, which is effected in Calvatia by the irregular falling away of the apical portion of the peridium; whereas in Lycoperdon dehiscence is effected by means of a definite apical stoma. The genus contains about eight species, of which four are present in Australia and New Zealand.—G. D. Osborne: Stratigraphical and structural geology of the Carboniferous rocks in the Mt. Mirannie and Mt. Dyrring districts, near Singleton, N.S.W. There are two volcanic series with associated clastic rocks, and separating these series is a set of sediments called the Main Clastic Zone. The major volcanic series comprises andesites, dacites, rhyolites and keratophyres, while the lavas in the other group are chiefly toscanitic and dellenitic. The only glacial beds occur near the top of the Kuttung Series, and Rhacopteris-bearing strata are found on two horizons. The chief tectonic feature is the great Bridgeman Fault which separates the Kuttung Series from the Permian or Permo-Carboniferous Series. This is probably an overthrust. In addition there are many normal faults connected with the late Palasozoic diastrophism which folded the area and produced two basin-structures.