686 



INDEX 



Intestine in Squalus acanthias. On the de- 

 velopment of the digitiform gland and the 

 post- valvular segment of the 329 



LAMPYRIDS. Photogenic organs and 

 embryology of 145 



Larval development in the sea urchin in re- 

 lation to the axial gradients. Experimen- 

 tal control and modification of 65 



MAMMALS. On the sinus paranasales of 

 two early tertiary 135 



Metazoa. Part I. A review of the chromosome 

 numbers in the 1 



Miniatus, and histogenesis of the spermato- 

 zoon. Cytoplasmic inclusions in male 

 germ cells of the fowl tick, Argas 643 



Mitoses of the mosquito Culex pipiens. The 

 somatic 579 



Moodie, Roy L. On the sinus paranasales 

 of two early tertiary mammals 135 



Mosquito, Culex pipiens L. The chromo- 

 somes of the common house 523 



Mosquito Culex pipiens. The somatic mitoses 

 of the 579 



ORGANS and embryology of Lampyrids. 

 Photogenic 145 



(Orthoptera). The segregation and recombi- 

 nation of homologous chromosomes as 

 found in two genera of Acrididae 445 



PARANASALES of two early tertiary 

 mammals. On the sinus 135 



Payne, Febnandus. A study of the germ 

 cells of Gryllotalpa borealis and Gryllo- 

 talpa vulgaris 287 



Photogenic organs and embryology of Lampy- 

 rids 145 



Pipiens L. The chromosomes of the common 

 house mosquito, Culex 523 



Pipens. The somatic mitoses of the mosquito 

 Culex 579 



(Postbranchial, ultimobranchial) body in 

 Squalus acanthias. The development of 

 the suprapericardial 369 



Post-valvular segment of the intestine in 

 Squalus acanthias. On the development 

 of the digitiform gland and the 329 



Prolifer. Germ cells of coelenterates. III. 

 Aglant ha digitalis. IV. Hybocodon 593 



RECOMBINATION of homologous chro- 

 mosomes as found in two genera of 

 Acrididae (Orthoptera). The segrega- 

 tion and 445 



Reptiles. The development of the hypo- 

 physis in 209 



SEA urchin in relation to the axial gradients. 

 Experimental control and modification 

 of larval development in the 65 



Segment of the intestine in Squalus acanthias 

 On the development of the digitiform 

 gland and the post- valvular 329 



Segregation and recombination of homologous 

 chromosomes as found in two genera of 

 Acrididae (Orthoptera) . The 445 



Sinus paranasales of two early tertiary mam- 

 mals. On the 135 



Skull of Acanthias vulgaris. The 417 



Somatic mitoses of the mosquito Culex pipiens 

 The 579 



Spermatozoon. Cytoplasmic inclusions in 

 male germ cells of the fowl tick, Argas 

 miniatus, and histogenesis of the 643 



Squalus acanthias. On the development of 

 the digitiform gland and the post-valvular 

 segment of the intestine in 329 



Squalus acanthias. The development of the" 

 suprapericardial (postbranchial, ultimo- 

 branchial) body in 369 



Suprapericardial (postbranchial, ultimobran- 

 chial) body in Squalus acanthias. The 

 development of the 369 



TICK, Argas miniatus, and histogenesis 

 of the spermatozoon. Cytoplasmic 

 inclusions in male germ cells of the fowl.. 643 



/T TLTIMOBRANCHIAL) body in Squalus 

 I LJ acanthias. The development of the 



suprapericardial (postbranchial) 369 



Urchin in relation to the axial gradients. 

 Experimental control and modification of 

 larval development in the sea 65 



V 



ULGARIS. The skull of Acanthias. 



WELLS, Grace A. The skull of Acan- 

 thias vulgaris 417 



Whiting, P. W. The chromosomes of the 



common house mosquito, Culex pipiens L 523 

 Williams, F. X. Photogenic organs and 

 embryology of Lampyrids 145 



7 



