614 



INDEX 



LAMPREY, Entosphenus wilderi (Gage), 

 up to and including the period of sex 

 differentiation. The early history of 



the germ cells in the brook 1 



Leioh-Sharpe, W. Harold. The compara- 

 tive morphology of the secondary sexual 

 characters of Elasmobranch fishes. II. 

 The claspers, clasper siphons, and clasper 



glands 359 



Lepisma domestica. The spermatogenesis 



of 381 



Ligaments in the middle-ear region of Gallus. 

 The position and functional interpreta- 

 tion of the elastic 229 



MALPIGHIAN tubes of Bo^mbyx mori L. 

 On the metamorphosis of the 195 



Metamorphosis of the malpighiau tubes of 

 Bombyx mori L. On the 195 



Microsporidia, with special reference to those 

 parasitic in mosquitoes. Studies on 153 



Middle-ear region of Gallus. The position 



jjij and functional interpretation of the 

 elastic ligaments in the 229 



Morphology of the secondary sexual char- 

 acters of Elasmobranch fishes. II. The 



Ijg claspers, clasper siphons, and clasper 

 glands. The comparative 359 



Mosquitoes. Studies on Microsporidia, with 

 special reference to those parasitic in. . . . 153 



OKKELBERG, Peter. The early history 

 of the germ cells in the brook lamprey, 

 Entosphenus wilderi (Gage), up to and 

 including the period of sex differentiation 1 

 (Orthoptera.) Genetical behavior of hetero- 

 morphic homologous chromosomes of 

 Circotettix 457 



PARASITIC in mosquitoes. Studies on 

 Microsporidia, with special reference 



to those 153 



Placenta and decidua. Cytological studies 

 on the internal secretory functions in 



the human 485 



PoHLMAN, A. G. The position and functional 

 interpretation of the elastic ligaments in 

 the middle-ear region of Gallus 229 



REESE, A. M. The structure and develop- 

 ment of the integumental glands of the 

 Crocodilia 581 



Region of Gallus. The position and func- 

 tional interpretation of the elastic liga- 

 ments in the middle-ear 229 



Region of the spine in chelonians. Observa- 

 tions on the cervical 213 



SECONDARY sexual characters of Elasmo- 

 branch fishes. II. The claspers, clasper 

 siphons, and clasper glands. The com- 

 parative morphology of the 359 



Secretory functions in the human placenta 

 and decidua. Cytological studies on the 

 internal 485 



Sex differentiation. The early history of the 

 germ cells in the brook lamprey, Ento- 

 sphenus wilderi (Gage), up to and includ- 

 ing the period of 1 



Sexual characters of Elasmobranch fishes. 

 II. The claspers, clasper siphons, and 

 clasper glands. The comparative mor- 

 phology of the secondary 359 



Shufeldt, R. W. Observations on the 

 cervical region of the spine in chelonians 213 



Siphons, and clasper glands. The compara- 

 tive morphology of the secondary sexual 

 characters of Elasmobranch fishes. II. 

 The claspers, clasper 359 



Slon.aker, J.\mes Rollin. The develop- 

 ment of the eye and its accessory parts 

 in the English sparrow (Passer domes- 

 ticus) 263 



Sparrow (Passer domesticus). The develop- 

 ment of the eye and its accessory parts 

 in the English 263 



Spermatogenesis of Lepisma domestica. The 381 



Spine in chelonians. Observations on the 

 cervical region of the 213 



Studies on the internal secretory functions 

 in the human placenta and decidua. 

 Cytological 485 



Syngnathus fuscus. The chondrocranium of 425 



TUBES of Bombyx mori L. On the meta- 

 morphosis of the malpighian 195 



w 



ILDERI" (Gage), up to and including 

 the period of sex differentiation. The 

 early history of the germ cells in the 

 brook lamprey, Entosphenus 1 



