1914] Babcoch: New Variety of Juglans 57 



PUBLICATIONS EEFERRED TO IN THIS PAPER 



1 Babcock, E. B., Study of a New Form of Juglans calif ornica Watson, 

 Univ. Calif. Publ. Agric. Sciences, vol. 2, no. 1, 1913. 



2 Bateson, Win., Address of the President of the British Association 

 for the Advancement of Science at Melbourne, Science, n. s., vol. 40 no 

 1026, p. 296, 1914. 



3 Gates, R. R., Breeding exjieriments which show that hybridization 

 and nautation are independent phenomena, Zeitschr. f. Ind. Abstamm.-u 

 Vererbungslehre, bd. 11, hft. 4, 1914. 



4 White, Chas. A., The Mutations of Lycopersicum, Pop. Sci. Mo., vol. 

 67, no. 2, p. 151, 1905. 



5 White, Chas. A., Aggregate Mutations in Gossypium, Science, n. s., 

 vol. 27, no. 683, 1913; and Cook, 0. F., Mutative Reversions in Cotton, 

 Circ. no. 53, Bur. Plant Industry, U. S. Dept. Agric, 1910. 



6 Hayes, H. K., and Beinhart, E. G., Mutation in Tobacco, Science, n. s., 

 vol. 39, no. 992, p. 34, 1914. 



7 Cockerell, T. D. A., The Red Sunflower, Pop. Sci. Mo., vol. 80, no. 4, 

 p. 373, 1912; A Wine-Red Sunflower, Science, n. s., vol. 38, no. 974, p. 312, 

 1913; Suppression and Loss of Characters in Sunflowers, ibid., n. s., vol. 

 40, no. 1025, p. 283, 1914. 



8 Morgan, T. H., Heredity and Sex, 1913. 



9 Castle, W. E., The Cytological Time of Mutation in Tobacco, Science, 

 n. s., vol. 39, no. 995, p. 140, 1914. 



10 Strasburger, Noll, Schenck and Karston, A Text-Book of Botany, 

 p. 93, 1908. 



11 Overton, Jas. B., Parthenogenesis in Thalictriim purpurascens, Bot. 

 Gaz., vol. 33, p. 363, 1902. 



12 Nawaschin, S., and Finn, V., Zur Entwickelungsgeschichte der Chala- 

 zogamen, Juglans regia and J. nigra, in Mem. Acad. Imp. Sci. St. Peters- 

 bourg, 31, pp. 1-59, 1913. Also noted in Bot. Gaz., vol. 57, no. 2, p. 162, 

 1914. 



13 This is the 5th condition of Gregoire 's hypothesis for explaining 

 chromosome numbers in QHnothera as set forth by Lutz (cf. 14, p. 426). 



14 Lutz, Anne M., Triploid Mutants in Glnothera, in Biolog. Central., 

 bd. 32, no. 7, 1912. 



15 Berry, Edw. W., Notes on the Geological History of the Walnuts and 

 Hickories, Plant World, vol. 15, no. 10, 1912. 



16 Collins, G. N., Nature of Mendelian Units, Jour. Heredity, vol. 5, 

 no. 10, 1914. 



17 Pierce, N. B., A New Walnut, Science, n. s., vol. 37, no. 955, p. 613, 

 1913. 



