PURE LINE INHERITANCE AND PARTHENOGENESIS. 35 



BIBLIOGRAPHY. 



Gillette, C. P., and Taylor, E. P. 



'08 A Few Orchard Plant Lice. Bull. 133, Colo. Agri. Exp. Sta. Forty-seven 



pages. 

 Jennings, H. S. 



'09 Heredity and Variation in the Simplest Organisms. Amer. Nat., XLIII., 



PP- 321-337- 

 Jennings, H. S. 



'n Pure Lines in the Study of Genetics in Lower Organisms. Amer. Nat., 



XLV., pp. 79-89. 

 Johanssen, W. 



'n The Genotype Conception of Heredity. Amer. Nat., XLV., pp. 129-159. 

 Kaltenbach, J. H. 



'72 Monographic der Familien der Pflanzenlause. Aachen. 

 Kelly, J. P. 



'13 Heredity in a Parthenogenetic Insect (Aphis'). Amer. Nat., XLVIL, 



pp. 229-234. 

 Middleton, A. R/ 



'13 Work on Genetic Problems in Protozoa at Yale. Amer. Nat., XLVIL, 



pp. 434-439. 

 Patch, E. M. 



'13 A Study in Antennal Variation. Ann. Entom. Soc. Amer., VI., pp. 233- 



240. 

 Pergande, Theo. 



'04 On Some of the Aphides Affecting Grains and Grasses of the United States. 



Bull. 44, Division of Entomology, U. S. Dept. Agri., pp. 5-24. 

 Pettit, R. H. 



'02 The Grain Aphis. Bull. 200, Mich. Agri. Exp. Sta., pp. 195-198. 

 Shull, A. F. 



'10 The Artificial Production of the Parthenogenetic and Sexual Phases of the 



Life Cycle of Hydatina senta. Amer. Nat., XLIV., pp. 146-150. 

 Vickery, R. A. 



'08 A Comparative Study of the External Anatomy of Plant Lice. Twelfth 



Report of State Entomologist of Minnesota. Fourteen pages. 

 Whitney, D. D. 



'12 " Strains " in Hydatina senta. BIOL. BULL., XXII., pp. 205-218. 

 Wilson, E. B. 



'13 Heredity and Microscopical Research. Science, XXXVII. , pp. 814-826. 

 Woltereck, R. 



'10 Weitere experimentelle Untersuchungen iiber die Artveranderung, spezielle 

 iiber das Wesen quantitativer Artunterschiede bei Daphniden. Biol. 

 CentralbL, XXX., pp. 679-688. 



