512 
Bulletin No. 162—1915. 
Raspial, Xavier. 
1897. Notion, chez la Tourterelle, du temps necessaire a 
1’incubation de ses oeufs. Bid. Soc. Zool. France, 
Yol. 22, No. 8, pp. 190-193. 
1907. Notion chez les columbides du temps necessaire a 
1’incubation de leurs oeufs. Bid. Soc. Zool. France, 
pp. 89-90. 
Riddle. Oscar. 
1914. A quantitative basis of sex as indicated by the sex 
behavior of doves from a sex controlled series. Science, 
N. S., Yol. 39, No. 1003, p. 440. 
Saint-Loup. 
1898. Unions consanguines chez les Columbins. Intermediate 
des Biologistes, No. 7, Feb. 5, p. 155. (Cited from 
Cuenot, 1899.) 
SCIINACHTZABEL, E. 
[1906 (?) j Ulustriertes Prachtwerk samtlicher Tauben-Rassen. 
Wiirzburg. (100 colored plates.) 
Tegetmeier, W. B. 
[1868 (?) ] Pigeons: their structure, varieties, habits, and 
management. London, iv +190 pp., 16 colored 
plates. 
de Varigny. 
1898. Unions consanguines des Columbins. Intermediate des 
Biologistes, No. 10, Mar. 20, p. 225. (Cited from Cuenot, 
1899.) 
Wright, Lewis. 
[1879] The practical pigeon keeper. London, viii + 232 pp. 
4th ed., not dated; apparently unchanged from 1st ed., 
pub. 1879. 
