274 INBEEEDINa AND OUTBEEEDING 



51 Morgan, T. H., Stdetevant, A. H., Mulleb, H. J., and Bridges, 



C. B. : The Mechanism of Mendelian Heredity. New York, 1915, 

 pp. 262. 



52 MoREO-w, G. E., and Gardner, T. D. : Field Experiments with Com. 



Illinois Agr. Exp. Sta. Bull. 25„ 1893, 173-203. 



63 MoBEOW, G. E., and Gardner, F. D. : Experiments with Corn. Illi- 



nois Agr. Exp. Sta. BuU. 31, 1894, 359, 360. 



64 MuLLEE, H. J. : The Mechanism of Crossing Over. I, II, III, IV. 



Amer. Nat., 1916, 1, 193-221, 284-305, 350-366, 421-434.' 



65 Muller, H. J. : An (Enothera-like Case in Drosophila. Proc. Nat. 



Acad. Sei., 1917, iii, 619-626. 

 6* Muller, H. J. : Genetic Variability, Twin Hybrids and Constant 



Hybrids, in a Case of Balanced! Lethal Factors; Genetics, 1918, 



iii, 422-499. 

 6T MiJLLEE, H. : Die Befruchtung der Blumen durch Insekten und die 



■gegenseitigen Anpassungen beider. Leipzig, 1873, pp. 478. 

 68 MuMPORD, F. B. : The Breeding of Animals. New York, 1917, 



- pp. 303. 

 6« Naudin, C. : NouveUes recherches sur I'hybridite dans les vegetans. 



Nouv. Arch. du. Mus. d'Hist. Nat. de Paris, 1865, i, 25-174. 

 «(>Neaeing, S.: Geographical Distribution of American Genius. Pop. 



Soi. Mon., 1914, Ixxxv, 189-199. 



61 Neaeing, S. : The Yooinger Generation of American Genius. Sei. 



Mon., 1916, ii, 48-61. 



62 Nemec, B. : Das Problem der Befruchtungsvorgange. Berlin, 1910, 



pp. 532. 

 *3 Odin, A. : Genese des grandes hommes gens dte lettres fran§ais 



modemes. 2 vol., Paris, 1895. 

 «* Parker, G. H., and Bullaed, C. : On the Size of Litters and the 



Numiber of Nipples in Swine. Proc. Amer. Acad. Arts and Sei., 



1913, xlix, 397-426. 

 86 Peael, R. : The Mode of Inheritance of Fecundity in the Domestic 



Fowl. Jour. Exp. Zool., 1912, xiii, 153-268. 



66 Pearl, R. : On the Correlation Between the Number of Mammee of 



the Dam, and Size of Litter in Mammals. I. Inteiracial Correla- 

 tion. Proc. Soc. Exp. Biol, and Med., 1913, xi, 27-30. 



6T Pearl, R. : On the Correlation Between the Number of Mammae of 

 the Dam and! Size of Litter in Mammals. II. Intraracial Correla- 

 tion in Swine. Proc. Soc. Exp. Biol, and Med., 1913, xi, 31, 32. 



68 Peael, R. : A Contribution Towards an Analysis of the Problem of 

 Inbreeding. Amer. Nat., 1913, xlvii, 577-614. 



