644 GENETICS IN RELATION TO AGRICULTURE 
1912. Ueber Veranderung der Form, Farbe und Zeichnung von Kanarieneiern 
durch Bastardierung. Arch. Ges. Physiol., 148. 
Turts, W. P., 1914. An inquiry into the nature of a somatic segregation of char- 
acters in the Le Conte pear. Ore. A.H.S., Bull. 123. 
Tupper, W. W., and Barriert, H. H., 1916. A comparison of the wood structure 
of @nothera stenomeres and its tetraploid mutation gigas. Genetics, 1. 
Tyzzer, E. E., 1909. A study of the inheritance in mice with reference to their 
susceptibility to transferable tumors. Jour. Med. Research, 21. 
Van Furet, W., 1914. Chestnut breeding experience. Jour. Hered., 5. 
Vavitoyv, N. I, 1915. Breeding for resistance to rust and mildew in wheat. Jour. 
Gen., 4. 
Vernon, H. M., 1903. ‘Variation in Animals and Plants,’’ New York. 
Vraua, P., and Ravaz, L. ‘American Vines,” second ed. (translation by R. Dubois 
and E. H. Twight). San Francisco. 
DE VILMORIN, P., 1911 (1913). Repts. 4th Intern. Conf. Genet., Paris. 
pE Vitmonrin, P., and Barmson, W., 1911. A case of gametic coupling in Pisum, 
Proc. Roy. Soc., B, 84. 
bE Vrizs, H., 1901-8. ‘Die Mutationstheorie,”’ Leipzig. 
1905. ‘Species and Varieties; Their Origin by Mutation,” Chicago. 
1907. ‘‘Plant-breeding; Comments on the Experiments of Nilsson and Bur- 
bank,” Chicago. 
1907a. On twin hybrids. Bot. Gaz., 44. 
1908. Uber die Zwillingsbastarde von Gfnothera nanella, Ber. Deutsch. Bot. 
Ges., 26, a. 
1908a. Bastarde von Gnothera gigas. Ber. Deutsch. Bot. Ges. 26, a. 
1909. On triple hybrids. Bot. Gaz., 49. 
1911. Uber doppeltreziproke Bastarde von (nothera biennis und .O. muricata. 
Biol. Centr., 31. 
1913. “Gruppenweise Artbildung,” Berlin. (Contains complete bibliography 
of Gsnothera papers, 1901-12.) 
1914. The probable origin of Gnothera Lamarckiana Ser. Bot. Gaz., 17. 
1915. Ueber kiinstliche Beschlennigung der Wasseraufnahme in Samen durch 
Druck. Biol. Centr., 35. 
1915a. Cénothera gigas nanella, a Mendelian mutant. Bot. Gaz., 60. 
1916. New dimorphic mutants of the @notheras. Bot. Gaz., 62. 
Waener, R. J., 1916. Hydrogen ion concentration and natural immunity in plants. 
Cent. Bakt. (etc.), 2 Abt. 44, Nos. 24, 25. (Abstr. in H.S.R., 36, 6.) 
von Waut, H., 1907. Fruchtbare Maultiere. Jahrb. f. wissenschf. u. prakt. Tier- 
zucht. 
Warsurton, C. W.; Burnett, L. C.; and Lovs, H. H., 1914. Tests of selections 
from hybrids and commercial varieties of oats. U.S.D.A., Bull. 99. 
Warner, D. E., 1916. Prolific layers and how to select them. Field, 26. 
Waveu, F. A. 1917. Hybrid fruits that have made good. Country Gent., 
82, 44. 
Weraruerwax, P., 1916. Morphology of the flowers of Zea mays. Bul. Torrey Bot. 
Club, 43. 
Wesser, H. J., 1900. Complications in citrus hybridization caused by polyembryony. 
Bot. Gaz. 29; Science, n. s., 11. 
1904. New citrus fruit creations of the Department of Agriculture. Yearbook 
U.S.D.A. 
1906. Citrus hybrids. Rept. Am. Breed. Assoc., I. 
1906a. New citrus and pineapple productions. Yearbook U.S.D.A 
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