SUBJECT AND AUTHOR INDEX 



ACKERT, James E. The innervation of 

 the integument of Chiroptera 301 



BATES, George A. The pronepliric duct 

 in Elasmobranchs 345 



Beckwith, Cora J. The genesis of the plas- 

 ma-structure in the egg of Hydractinia 

 echinata 189 



CAMBARUS virilisand Cambarusimmunis 

 ( ? ), with special reference to synapsis and 

 the chromatoid Ijodies. Spermatogene- 

 sis of the American crayfish 587 



Cell constancy in the genus Eorhynchus. 

 Studies on 253 



Cells. I. The history of the germ cells in in- 

 sects with special reference to the Keim- 

 bahn-determinants in animals. Studies 

 on germ 375 



Central nervous system of Desmognathus fus- 

 ca. Some features in the development of 

 the 511 



Chiroptera. The innervation of the integu- 

 ment of 301 



Chromatoid bodies. Spermatogenesis of the 

 American crayfish, Cambarus virilis and 

 Cambarus immunis (?), with special refer- 

 ence to synapsis and the 587 



Chromosomal variations and the formation of 

 the first spermatocj-te chromosomes in the 

 European earwig, Forficula sp 559 



Chromosomes in the European earwig, Forfic- 

 ula sp. Chromosomal variations and the 

 formation of the first spermatoc>-te 559 



Chromosomes in Orthopteran spermatogenesis. 

 A comparative study of the 651 



Constancv in the genus Eorhynchus. Studies 

 oncefl 253 



Crayfish, Cambarus virilis and Cambarus im- 

 munis (?), with special reference to synap- 

 sis and the chromatoid bodies. Sperma- 

 togenesis of the American 587 



DESMOGNATHUS FUSCA. Some fea- 

 tures in the development of the central 



nervous system of 511 



Determinants in animals. Studies on germ 

 cells. I. The history of the germ cells in 

 insects with special reference to the Keim- 



bahn- 375 



Duct in Elasmobranchs. The pronephric 345 



EARWIG, Forficula sp. Chromosomal va- 

 riations and the formation of the first 

 spermatocyte chromosomes in the Euro- 

 pean 559 



Egg of Hydractinia echinata. The genesis of 



the plasma-structure in the 189 



Elasmobranchs. The pronephric duct in .345 



Eorhynchus. Studies on cell constancy in the 



genus 253 



Eye muscle nerves. The morphology of the ... 1 



FASTEN, Nathan. Spermatogenesis of 

 the American crayfish, Cambarus virilis 

 and Cambarus immunis (?), with special 

 reference to synapsis and the chromatoid 

 bodies 587 



Forficula sp. Chromosomal variations and 

 the formation of the first spermatocyte 

 chromosomes in the European earwig 559 



GERM CELLS. L The history of the 

 germ cells in insects with special refer- 

 ence to the Keimbahn-determinants in 

 animals. Studies on 375 



HEGNER, Robert \V. Studies on germ 

 cells. 1. The history of the germ cells 

 in insects with special reference to the 

 Keimbahn-determinants in animals .... 375 

 Hydractinia echinata. The genesis of the 

 plasma-structure in the egg of 189 



INNERVATION of the integument of Chi- 

 roptera. The : 301 



Integument of Chiroptera. The innervation 

 of the 301 



KEIMBAHN-DETERMINANTS in ani- 

 mals. Studies on germ cells. I. The 

 history of the germ cells in insects with 

 special reference to the 375 



Mc CLUNG, C. E. .\ comparative study 

 of the chromosomes in Orthopteran 



spermatogenesis 651 



Muscle nerves. The morphology of the eye 1 



NEAL, H. V. The morphology of the eye 

 muscle nerves 1 



Nerves. The morphology of the eye muscle. . . 1 

 Nervous, system of Desmognathus fusca. 

 Some features in the development of the 

 central 511 



ORTHOPTERAN spermatogenesis. A 

 comparative study of the chromosomes 

 in 651 



PAYNE, Ferx.\ndus. Chromosomal va- 

 riations and the formation of the first 

 spermatocyte chromosomes in the Euro- 

 pean earwig; Forficula sp 559 



Plasma-structure in the egg of Hydractinia 



echinata. The genesis of the 189 



Pronephric duct in Elasmobranchs. The 345 



SMITH, P. E. Some features in the devel- 

 opment of the central nervous system of 



Desmognathus fusca 511 



Spermatocyte chromosomes in the European 

 earwig, Forficula sp. Chromosomal vari- 

 ations and the formation of the first 559 



Spermatogenesis. A comparative study of the 



chromosomes in Orthopteran 651 



Spermatogenesis of the American crayfish, 

 Cambarus virilis and Cambarus immunis 

 (?), with special reference to synapsis and 

 the chromatoid bodies ; 587 



751 



