Index 



elusions, 39; early immunity, 

 40; specific immunity, 41; re- 

 lationship to roup, 41 ; devel- 

 opment of roup in immune 

 fowls, 42 ; possibility of double 

 inoculation, 42; complement 

 fixation, 43, 45 ; technique of 

 bleeding fowls, 43, 45; appear- 

 ance of specific antibody, 46. 



Epithelium, Ectodermic, Behavior 

 of in Tadpoles, When Culti- 

 vated in Plasma, 155. 



Eristalis, food in meadowlark, 434. 



Erotylidae, 427. 



Estei-ly, C. O., LSI. 



Euchaeta elongata, 183. 



Eugonia californica, 457. 



Euphagus cvanocephalus, 5, 6, 18, 

 457. 



Euphausia pacifica, 174. 



Euschistus, 483. 



Euvanessa antiopa, 483. 



Eyelashes of Circus hndsonius, 359, 

 365. 



Eye-spot. See ocellus. 



Faeces of birds, insect remains in, 

 7; of meadowlark, 437. 



Falco sparverius, 336. 

 sparverius, 6. 



Fatigue in leeches, causes produc- 

 ing, 2S4. 



Fatigue substances in leeches, 282 ; 

 carbon dioxide, 282; mono- 

 potassium phosphate, 283 ; lac- 

 tic acid, 284. 



Feathers of Circus hudsonius. 329- 

 376. 



Feathers, contour, 363, 365; of 

 the trunk, 352, 356; from the 

 middle of the back, calamus, 

 shaft, vanes, barbs, 352; dis- 

 tal barbule, proximal barbules, 

 feathers of the upper back, 

 of the nape, 353 ; of the crown, 

 upper tail coverts, 354; under 

 parts, lower breast, upper 

 breast. 354 ; flanks, lower belly, 

 legs, 355; under tail coverts, 

 filoplumes, 356. 

 down, 332; calamus aftershafts, 

 quill, 332; barbs, 332, 334; 

 barbules, 333, 334; powder- 

 down, 333; oil gland, 334; 

 downy structure, in remiges 

 and rectrices, 363. 

 modified, of the head, 357; 

 facial ruff, 357; ear coverts, 

 358; post-orbital bristles, 359; 



supra-orbital bristles, 359 ; eye- 

 lashes, 359; loral bristles, 360; 

 rictal bristles, 360. 



Feathers, tail, 361, 365; of rec- 

 trices, 350. 



Feathers, thumb. See Alula. 



Feces of birds, insect remains in, 

 7; of meadowlark, 437. 



Feeding reactions, analysis of, in 

 leeches Diiia microstoma and 

 Glossiphonia stagnalis, 219. 



Ficalbi, E., cited, 143. 



Filoplumes of Circus hudsonius, 

 332, 334, 356, 360, 362; pi. 16, 

 opp. p. 368. 



Fisheries, relation of leeches to, 

 203. 



Flicker, red-shafted, 5. 



Flies, food of meadowlark, 434. 



Food, effect of, on chromatophores, 

 80. 



Formica, food of meadowlark, 433. 



Formicidae, 434. 



Franz, V., cited, 144. 



Pucus, 129. 



Fulgoridae, 429. 



Pundulus, 144. 



Gaetanus ascendens, 182. 



Galovine, E., cited, 143. 



Game birds, 477; non-game, 477. 



Gaupp, cited, 143. 



Gee, Wilson, 197; cited, 267. 



Geotactic response, tendency to, 

 in Dina microstoma, 231. 



Gibbs, H., cited, 203. 



Glossiphonia bioculata, 206. 

 complanata, 218. 

 heteroclita, 206. 

 sexoculata, 206. 



stagnalis, description and dis- 

 tribution, 207; feeding reac- 

 tions, 219; phiitotaxis in, 223; 

 directive influence of light on 

 movements of, 225; mode of 

 fecundation, 234; experiments 

 on "parental instinct," 235- 

 240. 

 tessulata, 201. 



Glushkiewitsch, T. H., cited, 245, 

 246. 



Gobius, 144. 



Goldfinch, green-backed, 5, 6. 



Gonyaulax, 21, 22. 

 palustris, 21, 23. 



Gortner, K. A., cited, 57, 58. 



Grain seeds, destroyed by meadow- 

 lark, 442. 



[.532] 



