Booh Notes and Bibliography 
417 
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1909, (i). Pp. 1344—1347. 
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(43) Hackenberg, H. Ueber die Substanzquotienten von Cannabis sativa und Cannabis 
gigantea. Botanisches Centralblatt, Vol. xxiv. No. 1, pi). 45—67. 1908. 
Statistical data. 
(44) Hardy, G. H. Mendelian proportions in a mixed population. Science, N.S., Vol. xxviii, 
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Discusses the statistical consequences of Mendelian inheritance in a general 
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(45) Harman, N. Bishop. A study in heredity ; six generations of piebalds. Med. Press and 
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(46) Harris, J. A. Variation in the number of seeds per pod in the broom, Cytisus scoparius. 
American Naturalist, Vol. xliii, pp. 350—355. 1909. 
Compares samples of American and English populations of this plant. 
(47) Hatai, S. a comparison of the albino with the gray rats in respect to the weight of the 
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(48) . Note on the Formulas used for calculating the Weight of the Brain in the 
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Of. Donaldson, H. H. Supra. 
(49) Hrdlicka, Ales. Physiological and medical observations among the Indians of South- 
western United States and Northern Mexico. Wtishington (Government Printing 
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(50) Jackson, C. M. On the prenatal growth of the human body and the relative growth of 
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(51) Jennings, H. S. Heredity and variation in the simplest organisms. American 
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(52) Joseph, D. R. The relation of the weight of the contents of stomach and caecum to the 
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(53) Kanitz, Aristides. Bezuglich der Dauer der "normalen" Schwangerschaft. Zeit. fiir 
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(54) King, Helen D. Studies on sex-determination in amphibians. Biological Bulletin, 
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(55) Kratzschmar, H. Ueber den Polymorph ismus von Anuraea aculeata. Variations- 
statistische und experimentelle Untersuchung. Internat. Revue f. d. ges. Hydrobiol., 
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(56) Kunkel, K. Vermehrung und Lebensdauer der Nacktschnecken. Verb. d. dtsch. zool. 
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(57) Lapicque, L. Limite supc^rieure de la proportion d'encephale \}AV rapport au poids du 
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1908. 
