32 BULLETIN U95, U. S. DEPARTMENT OF AGRICULTURE. 



(8) Jones, L. R. 



1903. The diseases of the potato in relation to its development. In Trans. 

 Mass. Hort. Soc, 1903, pt. 1. p. 144-156. 



(9) Kendall, John N. 



1918. Abscission of flowers and fruits in the Solanaceae, with special refer- 



ence to Nicotiana. Univ. Cal. Pul). Bot., v. 5, p. 347-428, 10 fig., 

 pi. 49-53. 



(10) Klebs, Georg. 



1903. Willkiirliche Entwickelungsanderungen bei Pflanzen. iv, 166 p., 

 28 fig. Jena. 



(11) 1904. Ueber Probleme der Entwickelung. In Biol. Centralbl., Bd. 24, 



p. 257-267, 289-305, 3 fig. 



(12) 1905. Ueber Variationen der Bliiten. In Jahrb. Wiss. Bot. [Pringsheim], 



Bd. 42, p. 155-320, 27 fig., pi. 8. 



(13) 1910. Alterations in the development and forms of plants as a result of 



environment. In Proc. Roy. Soc. Lond., ser. B, v. 82, p. 547-558. 



(14) Knight, Thomas Andrew. 



1807. On raising new and early varieties of the potato. In Trans. Hort. 

 Soc. London, v. 1, pt. 1, p. 57-59. 



(15) Ltjtman, B. F. 



1919. Osmotic pressures in the potato plant at various stages of growth. In 



Amer. Jour. Bot.. v. (5, p. 181-202, 2 fig. 



(16) Medicus, Friedrich Kasimir. 



1803. Pflanzen-physiologische Abhandluugen. Bd.2, 244p. Leipzig. 



(17) Newman, C. C, and Leonian, L. A. 



1918. Irish potato breeding. S. C. Agr. Exp. Sta. Bui. 195, 28 p., 19 fig. 



(18) Salaman, Redcliffe N. 



1910. Male sterility in potatoes, a dominant Mendelian character; with 

 remarks on the shape of the pollen in wild and domestic varieties. 

 In Jour. Linn. Soc. [London], Bot., v. 39, p. 301-312. 



(19) and Lesley, J. W. J 



1922. Genetic studies in potatoes; sterility. In Jour. Agr. Sci., v. 12, I 



p. 31-39, pi. 2. ' 



(20) Setchell, William Albert. ■ 



1920. Stenothermy and zone invasion. Ira Amer. Nat., v. 54, p. 385-397. ■ 



(21) 1920. Geographical distribution of the marine spermatophvtes. In Bui. 



Torrey Bot. Club, v. 47, p. 563-579. 



(22) Stout, A. B. 



1923. Alternation of sexes and intermittent production of fruit in the 



spider flower (Cleome spinosa). In Amer. Jour. Bot., v. 10, p. 57- 

 66„ 1 fig. pi. 6. 



(23) Stuart, William. 



1915. Group classification and varietal descriptions of some American pota- 

 toes. U. S. Dept. Agr. Bui. 176, 56 p., 19 pi. 



(24) 1915. Potato breeding and selection. U. S. Dept. Agr. Bui. 195, 35 p. 



2 fig. 16 pi. 



(25) and others. 



[1922.] Report of committee on varietal nomenclature and testing. In 



Proc. 8th Ann. Meeting Potato Assoc. America, 1921, p. 60-72. 



(26) Taylor, George M. 



1910. The cross-fertilization of the potato. In Gard. Chron., ser. 3, v. 48, 

 p. 279. 



(27) Young, W. J. 



1922. Some phases of breeding work and seed jiroduction of Irish potatoee. 

 S. C. Agr. Exp. Sta. Btil. 210, 20 p., 3 fig. 



WA.SIIINf.TO.N : fiOVEUNMENT PRINTINO I FFICK : 10J4 



