Mangelsdorf : Mealy Endosperm 



365 



Of the normal seeds planted only 

 10.8 per cent, produced white seed- 

 lings, while 61.1 per cent., or almost 

 six times as many, of the mealy seeds 

 developed into albinoes. If the char- 

 acters were inherited independently 

 approximately 25 per cent, of both 

 types of seed should produce white 

 seedlings. Clearly there is some defin- 

 ite relation between mealy endosperm 

 and this type of chlorophyll deficiency. 

 There is a possibility that the relation 



may be physiological rather than a 

 case of true linkage ; that both ab- 

 normalities are merely the expression 

 of the same physiological condition. 

 The fact that normal ears of this strain 

 often segregate for white seedlings and 

 that mealy seeds sometimes produce 

 only green plants seems, however, 

 to preclude this possibility. Further 

 tests are now being made to determine 

 more definitely the relation that exists 

 between these two lethals. 



The Freudian Obsession 



Mysticism, Freudianism and Scien- 

 tific Psychology, by Knight 

 DuNLAP. C. V. Mosby Co., St. 

 Louis. Mo. 



Prof. Dunlap in this condensed vol- 

 ume fights the battle of common sense 

 as well as that of scientific psychology. 

 He does it simply and efifectively. The 

 book shows thorough acquaintance with 

 modern psychology in its writer, but 

 does not necessarily demand such ac- 

 quaintance in its readers. The book 

 has three sections. The first of these 

 discusses the varied phenomena of 

 religious mysticism, especially where 

 such mysticism passes over into the ex- 

 tremes that become more or less com- 

 pletely hysterical. The second consid- 

 ers even more at length these same 



hysterical exaggerations in their grosser 

 manifestations of extreme Freudianism, 

 psychoanalysis, christian science, etc. 

 The third section of the book develops 

 succinctly and clearly both the methods 

 and the results of true scientific psy- 

 chology in its study of mental phe- 

 nomena as contrasted with the methods 

 of these scientific heresies. We wonder 

 whether it was necessary to include so 

 many of the excessive and offensive 

 exaggerations of Freudianism as are 

 here quoted. A very few such samples 

 would seem sufficient to develop all the 

 distrust and the disgust which was 

 necessary. However, if revelation of 

 the erotic hysteria of such pseudosci- 

 ence were needed, it is here abundantly 

 provided. — R. E. C. 



Books Received 



The Biology of Death, by Raymond Pearl. J. B. Lippincott Company, New 



York. 1922. 

 Htiman Life as the Biologist Sees It, by Vernon Kellogg. Henry Holt and 



Company, New York. 1922. 

 The Physiology of Tzvinning, by Horatio Hackett Newman. The University 



of Chicago Press, Chicago. 1922. 

 Social Change, by Henry Fielding Ogburn. B. W. Huebsch Co.. New York. 



1922. 

 Glands In Health and Disease, by Benjamin Harrow. The Macmillan Co., 



New York. 1922. 



