560 



INDEX 



Fertility and sterility in Drosophila ampelo- 

 phila. II. Fertility in Drosophila and its 

 behavior in heredity 173 



• and sterility in Drosophila ampelo- 



phila. III. Effects of crossing on fertility 

 in Drosophila. IV. Effects on fertility of 

 crossing within and without an inconstant 

 stock of Drosophila .343 



Food. 11. Digestion and resorption in the 

 food vacuole, and further analysis of the 

 process of extrusion. The relations of 

 Bursaria to 1 



in controlling sex in Hydatina senta. 



The influence of 545 



Fourth chromosome of Drosophila. A gene 

 for the 325 



GENE for the fourth chromosome of Dro- 

 sophila 325 



HARRISON, Ro.ss G. The reaction of 

 embryonic cells to solid structures .... 521 



Head-determination in Planaria. Studies on 

 the dynamics of morphogenesis and in- 

 heritance in experimental reproduction. 

 Vlll. Dynamic factors in 61 



Heredity. Fertility and .sterility in Droso- 

 phila ampelophila. I. Sterility in Dro.so- 

 phila with es|)ecial reference to a defect in 

 the female and its behavior in 141 



. Fertility and sterility in Drosophila 



ampelophila. 11. Fertility in Drosophila 

 and its behavior in 173 



HoLME.s, S. J. The behavior of epidermis of 

 amphibians when cultivated outside the 

 body 281 



Hydatina senta. Tlie influence of food in con- 

 trolling sex in 545 



Hyde, Roscoe R. Fertility and sterility in 

 Drosophila ampelophila. 1. Sterility in 

 Drosophila with especial reference to a 

 •<lefect in the female and its behavior in 

 heredity 141 



. 11. Fertility in Drosophila and its be- 

 havior in heredity 173 



. III. Effects of crossing on fertility in 



Drosophila. IV. Effects on fertility of 

 crossing within and without an inconstant 

 stock of Dro.sophila 343 



INFLUENCE of food in controlling sex in 

 Hydatina senta. The 545 



Inheritance in experimental reproduction. 

 \TI1. Dynamic factors in head-determi- 

 nation in Planaria. Studies on the dynam- 

 ics of morphogenesis and 61 



LARVA (Calliphora erythrocephala Mei- 

 gen). A quantitative determination of 

 the orienting reaction of the blowfly. . . .213 



Lethal factor in Drosophila. A third sex- 

 linked 315 



factors in Drosophila and their influ- 

 ence on the sex-ratio. Two sex-linked. . . 81 



LoEB, Jacques. Cluster formation of spermat- 

 ozoa caused by specific substances from 

 eggs 123 



Lund, E. .1. The relations of Bursaria to 

 food. II. Digestion and resorption in the 

 food vacuole, and further analysis of the 

 process of extrusion 1 



Lymph hearts in chick embryos: their rela- 

 tion to the body movements. On the 

 early pulsations of the posterior 373 



METZ, Charles W. Chromosome studies 

 in the Diptera. I. A preliminary sur- 

 vey of five different types of chromo- 

 some groups in the genus Drosophila. 45 

 Mitochondria. The effects of centrifuging 

 the spermatocyte cells of Notonecta, with 



special reference to the 337 



MoRG.\N, T. H. A third sex-linked lethal 



factor in Drosophila 315 



^ •. Two sex-linked lethal factors in Dro- 

 sophila and their influence on the sex- 

 ratio 81 



Morphogenesis and inheritance in experi- 

 mental reproduction. Vlll. Dynamic 

 factors in head-determination in Planaria. 



Studies on the dynamics of 61 



MuLT.EB, Hermann .1. A gene for the fourth 

 chromosome of Drosophila 325 



NOTONECTA, with special reference to the 

 mitochondria. The effects of centrifug- 

 ing the spermatocyte cells of 337 



ORIENTING reaction of the blowfly larva 

 (Calliphora erythrocephala Meigen). A 



quantitative determination of the 213 



Oviduct. Studies on the physiology of repro- 

 duction in the domestic fowl. Vlll. On 

 some physiological effects of ligation, sec- 

 tion, or removal of the 395 



P.\RAMAEC1UM. A normal periodic re- 

 organization process without cell fusion 

 in 425 



. The effect of thyroid on the division 



rate of 297 



P.VTTEN, Bradley M. A quantitative deter- 

 mination of the orienting reaction of the 

 blowfly larva (Calliphora erythrocephala 

 Meigen) 213 



Pearl, Raymond, and Curtis, Maynie R. 

 Studies on the phjsiology of reproduction 

 in the domestic fowl. Vlll. On some 

 physiological effects of ligation, section, 

 or removal of the oviduct 395 



Periodic reorganization process without cell 

 fusion in Paramaecium. A normal 425 



Phj-siology of reproduction in the domestic 

 fowl. Vlll. On some physiological ef- 

 fects of ligation, section, or removal of the 

 oviduct . Studies on the 395 



Planaria. Studies on the dynamics of mor- 

 phogenesis and inheritance in experi- 

 mental reproduction. Vlll. Dynamic fac- 

 tors in head-determination in 61 



Pulsations of the posterior lymph hearts in 

 chick emljryos: their relation to the body 

 movements. On the early 373 



Q 



UANTITAT1\TE determination of the 

 orienting reaction of the blowfly larva 

 (Calliphora erj-throcepliala Meigen). A 213 



REACTION of embryonic cells to solid 

 structures. The 521 



Removal of the oviduct. Studies on the 

 physiology of reproduction in the domes- 

 tic fowl. Vlll. On some physiological 

 effects of ligation, section, or 395 



Reorganization process without cell fusion in 

 Paramaecium. A normal periodic 425 



Reproduction in the domestic fowl. Vlll. On 

 some physiological effects of ligation, 

 section, or removal of the oviduct. Studies 

 on the ph>siology of 395 



