452 



The Journal of Heredity 



23. Marshall, H. R. 



Consciousness. 

 London — Macmillan. 1909, 685 p. 



24. Miller, H. A. 



The psychological limit of eugenics. 

 Pop. Sci. Mo. 1914, 84:390-396. 



25. Minot, C. S. 



The problem of consciousness in its 

 biological aspects. 

 Proc. Amer. Ass. Adv. of Sc. 1902, 

 51:265-283. 



26. Morgan, C. L. 



Introduction to comparative psychol- 

 ogy. Chaps. 1, 2, 3, 18. 

 London— Scott: N. Y.— Scribner. 1898, 

 382 p. 



27. Miinsterherg, II.; Ribot, T.; Janet, P.; 



Jastroic, J.; Hart, B.; and Prince, M. 



Subconscious phenomena. 

 Boston— Badger. 1910, 141 p. 



28. Myers, F. W. H. 



Human personality. 

 London — Longmans, Green & Co. 1903, 

 2 vols. 



29. 



Subliminal consciousness. 

 Proc. of the Soc. of Psych. Res. 1891-2, 

 7:298-355. 



30. Patten, S. N. 



The genesis of personal traits. 

 Pop. Sci. Mo. 1913, 83:149-157. 



31. Prince, Morton. 



The unconscious. 

 N. Y.— Macmillan. 1914, 549 p. 



32. Ribot, T. 



L'her^dit^ psychologique. 

 Paris— Alcan. 1897, 5 ed., 419 p. 



(English translation.) Heredity. 

 N. Y.— Appleton. 1895, 393 p. 



33. Saleeby, C. W. 



The progress of eugenics. 

 N. Y.— Funk and Wagnalls. 1914, 

 259 p. 



34. Semon, R. 



Die Mneme als erhaltendes Prinzip im 

 Wechsel des organischen Gesche- 

 hens. 

 Leipzig — Engelmann. 1911, 3 Aufi. 



420 p. 



35. Tanner, A. E. 



Adler's theory of "minderwertigkeit." 

 Ped. Sem. 1915, 22:204-217. 



36. Tlwrndike, E. L. 



Educational psychologv. Vol. 3, p. 

 142-388. 

 N. Y. — Teachers College. Columbia 

 University. 1914. 



37. 



38. 



39. 



40. 



Eugenics, with special reference to 

 intellect and character. 

 Pop. Sci. Mo. 1913, 83:125-138. 

 Waldstein, Louis. 



Das unterbewusste Ich und sein Ver- 

 haltnis zu Gesundheit und Erzie- 

 hung. 

 Grenzfr. des Nerven u. Seelenl. 1908, 

 Band 9, Heft 62, 71 p. 

 White, W. A. 



The unconscious. 

 Psychoanalytic Rev. 1915, 2:12-28. 

 Wirth, Wilhelm. 



Die experimentelle analyse der Be- 

 wusstseinsphanomene. p. 1-18. 

 Braunschweig — Viewig. 1908, 449 p. 



Variation in Pure Lines 



The Ohio Agricultural Experiment Station has been studying variation in pure 

 lines of wheat since 1907, the characters under observation being size of kernel, 

 length of head, tillering and protein content. Each year 1,000 heads of wheat and 

 oats are selected and perpetuated as pure lines, in order to find more desirable 

 varieties of these cereals, if any such exist. Similar work is being done with soy 

 beans, but not on such a large scale. Hybridization of corn and tobacco is also 

 under way. 



The search for variation in a pure line has not yet been i)rodueti\'c of any impor- 

 tant result. C. V. Williams sends the following note : 



"The fifth crop of wheat harvested in our high and low protein work gix'cs the 

 following results : 



Percent, 

 protein 



T7.,u., „,.^ i;„^/High protein selection 13 .02 



Fultz pure line|Lo^ protein selection 1 2 .46 



■D^^i„ ^.„.^ i;„«/High protein selection 14 . 10 



P°°^^ P"'^'' ^'"nLow protein selection 13.52 



The average protein content of the seed used for the five seasons is : 



Fiiltz Poole 



High protein 17 .43''o 17 .94% 



Low protein 12.01 12.02 



This will have to be continued some years longer before we shall know whether 

 this apparent variation is herital)le or not. 'i'hree years of the work are reported 

 in A. B. A., Vol. 8. p. 409." 



