Abstract Spectral Analysis of Economic Time Series. Granger, C. W. J. in association with M. Hatanaka. Princeton: Princeton University Press, 1964. 299 + xviii. $8.50 Reviewed by Lester G. Telser Percentage Baseball, Earnshaw Cook, in collaboration with W. R. Garner, 2nd Ed., The M.I.T. Press, Cambridge, Mass., 1966, 431 pp. $9.95 Reviewed by Robert Hooke Weather and Climate Modification Problems and Prospects. Volume I: Summary and Recommendations, Pp. xi, 28. Volume II: Research and Development, Pp. xii, 198. Final Report of the Panel on Weather and Climate Modification to the Committee on Atmospheric Sciences, National Academy of Sciences, National Research Council. Publication No. 1350, National Academy of Sciences—National Research Council, Washington, D. C. 1966. Price $5.00 per two-volume set. Reviewed by K. A. Brownlee Sequential Methods in Statistics. G. Barrie Wetherill. London: Methuen & Company, New York: John Wiley & Sons, 1966. Pp. x, 218. $5.00. Reviewed by Lionel Weiss Strategic Aspects of Competitive Bidding for Corporate Securities. Charles Christenson. Boston, Massachusetts: Division of Research, Graduate School of Business Administration, Harvard University, 1965. Pp. x, 116. $6.00. Reviewed by Robert Wilson Trading in Federal Funds: Findings of a Three-Year Survey, Dorothy M. Nichols (Washington: Board of Governors of the Federal Reserve System, 1965). Reviewed by Michael Rieber Elements of Investments: Selected Readings. Edited by H. K. Wu and A. J. Zakon. New York: Holt, Rinehart and Winston, Inc., 1964. Pp. 500. $7.95. Reviewed by D. E. Peterson Handbook of Mathematical Psychology. Vol. 2. Edited by R. D. Luce, R. R. Bush, and E. Galanter. New York: John Wiley and Sons, Inc. 1963. Reviewed by Amnon Rapoport Handbook of Mathematical Psychology, Volume III. R. Duncan Luce, Robert R. Bush, and Eugene Galanter (eds.) New York: John Wiley and Sons, Inc. Pp. ix + 537. Reviewed by David M. Messick Operations Research and Quantitative Economics: An Elementary Introduction. Henri Theil, John C. G. Boot, and Teun Klock. McGraw-Hill Book Company. $8.95. Reviewed by Frank H. Trinkl Colloquium on Applications of Mathematics to Economics (Budapest, 1963), Edited by András Prékopa. Budapest: Akadémiai Kiadó, 1965. $12.00. Reviewed by Karl Shell Applied Combinatorial Mathematics. Edwin F. Beckenbach, Editor. John Wiley and Sons, New York, 1964. Reviewed by G. L. Thompson On-Line Computation and Simulation: The OPS-3 System. Martin Greenberger, Malcolm M. Jones, James H. Morris, Jr., and David N. Ness. Cambridge, Massachusetts: MIT Press, 1965. Pp. xi, 126. $4.95. Reviewed by Norman R. Nielsen Education and the Southern Economy, James W. McKie, ed. (Chapel Hill: Southern Economic Association, 1965.) Reviewed by Albert Fishlow Economies of Scale in the Steam-Electric Power Generating Industry. Suilin Ling. Amsterdam: North-Holland Publishing Company, 1964. Pp. viii, 99. $3.00. Reviewed by Fred M. Westfield Sampling. Morris James Slonim. Simon and Schuster, New York, 1966. Pp. xiii, 144. $1.45. Reviewed by J. W. P.