INDEX 



357 



recurrent mutations, 66. 



repulsion, 17. 



retrograde variety, 69. 



reverse mutations, 85. 



Kiddle, 283. 



ring dove, 283. 



Rosa, 163. 



rose comb, 72, 73, 74. 



Rosenberg, 165, 166, 167, 191. 



roses, 158-165. 



rotifer, 147, 214, 233, 234, 235, 



241. 

 round worms, 206. 

 Rumex, 212, 213. 

 rye, 150, 158. 



S 

 Saccharum, 170. 

 Sacculina, 263. 

 Sakamura, 152. 

 salamander, 286. 

 Santos, 212. 

 Sax, 152, 155, 156. 

 Schaffner, 287. 

 Sehleip, 231, 232. 

 Schmidt, 128, 222, 226. 

 Schrader, 148. 

 scute, bristles, 86. 

 sea urchins, 206. 



Seiler, 105, 209, 210, 220, 256, 314. 

 semi-gigas, 70. 

 semi-lata types, 70. 

 sesquiplex mutant type, 189. 

 sex, 199-218, 219. 

 sex-chromosomes, 32, 52-55, 199- 



218. 

 sex-determination, 219. 

 sex-linkage, 52. 



sex-linked inheritance, 207, 208. 

 sex reversals, 261-291. 

 Sexton, 264. 



sheep, 260. 



Shiwago, 206, 208. 



ShuU, A. r., 149. 



ShuU, G. H., 71, 189, 190. 



single comb, 73, 74. 



Sinnott, 180. 



Smith, G., 262-264. 



snail, 99. 



snapdragon, 97. 



Solenobia, 210. 



Solanum, 112-114. 



species, 68. 



"Species and Varieties," 68. 



Spemann, 139, 140. 



Spencer, Herbert, 28. 



Sphaerocarpus, 239. 



spider crab, 262. 



sporophyte, 125, 126. 



stable type, 124. 



Stevens, 208. 



Stockard, 207, 208. 



Stomps, 70. 



stone fly, 266. 



Sturtevant, 88-91, 101, 102, 254. 



sugar cane, 170. 



superfemale, 56, 253. 



supermale, 136, 252. 



sweet peas, 10, 11, 36, 37. 



Swingle, 269. 



T 



Tackholm, 158-163. 

 tadpole, 267-276. 

 Tahara, 167-169. 

 Talaeporia, 210. 

 Tandler, 258. 

 Tauson, 233. 

 Taylor, 170. 



teosinte, 123, 124, 187, 196. 

 tetraploids, 105-130. 

 tetra-type, 176. 



