356 JOURNAL OF THE WASHINGTON ACADEMY OE SCIENCES VOL. 11, NO. 15 



Darwin, Charles. The origin of species (with additions and corrections 

 from sixth and last English edition). 338 pp. (D. Appleton and Co., New 

 York, 1917.) No collection of works on biology should be without this classic. 

 The observations of Darwin are still the current material in biological dis- 

 cussion. His brilliant imagination, together with the thorough and pains- 

 taking way in which all conclusions are checked and tested without bias, 

 cannot fail to impress the reader that the study of heredity is a noble and 

 engrossing subject. 



East, E. M., and Jones, D. F. Inbreeding and outbreeding. 285 pp. 

 (Lippincott Co., Philadelphia, 1919.) Although confined to a restricted 

 field, this work presents the most modern interpretation of the phenomena 

 of inheritance in comprehensible form. 



Castle, W. E., Coulter, J. M., Davenport, C. B., East, E. M., and 

 Tower, W. L. Heredity and eugenics. 315 pp. (Chicago University 

 Press, 1912.) A collection of lectures proposed for an audience not especially 

 trained in biology. Although many important facts have come to light 

 since these lectures were delivered, they give, in readable form, the general 

 conceptions of heredity that are held by leading investigators. 



Morgan, T. H. A critique of the theory of evolution. 197 pp. (Princeton 

 University Press, 1916.) The author is one of the foremost investigators 

 of heredity. His work in the field of genetics, together with that of his stu- 

 dents, has resulted in discoveries that rank with those of Mendel. This 

 book, written for undergraduates, is semi-popular in style and although 

 special emphasis is laid on the phases of the subject in which the author is 

 especially interested, it introduces the reader to the important discoveries 

 made in genetics. 



CONKLIN, E. G. Heredity and environment. Third edition. 361 pages. 

 (Princeton University Press, 1919.) Newer and technical aspects of a 

 difficult science are not shunned in this treatise but the direct bearings of the 

 results of recent studies in this field upon the welfare and the future of man are 

 presented in a most readable manner. 



Galton, Francis. Hereditary genius. 390 pp. (D. Appleton and Co., 

 New York, 1884.) Old, but emphasizes in a delightful way the most impor- 

 tant side of genetics. 



PoPENOE, Paul, and Johnson, R. H. Applied eugenics. 459 pp. (Mac- 

 millan Co., New York, 1918.) A clear and forceful presentation of the 

 bearing and importance of studies in heredity as applied to the human race. 



Certain phenomena are common to all kinds of living organisms, 

 whether "animals" or "plants." Reproduction and inheritance 

 have already been spoken of, but there are also growth, and death, 

 and standing behind them waiting to be explained in terms that satisfy 

 the physicist as well as the biologist the fact of evolution : 



Thomson, John Arthur. The wonder of life. 658 pp. (A. Melrose, 

 Ltd., London, 1915.) "An unconventional introduction to Natural History 

 and Biology, taking broad views of the actual lives of living creatures and 

 working inwards." A bookful of "wonders," not exploited for the curious, 

 but all bringing their evidence to bear on general laws of life and its evolution. 



HeadlEy, F. W. Problems of evolution. 373 pp. (Crowell and Co., 

 New York, 1900.) The author is a skilled lecturer and introduces his book 

 with an elementary chapter for the general reader, also avoiding technical 

 terms throughout the work. 



