782 



INDEX 



N 



UCLEOLUS In the young oocytes and origin 

 of the ova in Gelastocorls. I. A further 

 study of the chromosomes of the Iledu- 



viidae. II. The 331 



OOCYTES and origin of the ova In Gelastocoris. 

 I. A further study of the chromasomes of 

 the Rcduvlldae. II. The nucleolus in the 

 young 331 



Oocyte to the beginning of cleavage. The bllater- 

 ality of the pigeon's egg. .\ study in egg organ- 

 ization from the first growth period of the 26!) 

 O.SBOUN, He.nhy Leslie. On the structure of 

 ■ Cliiiostomuni niarginatxim, a trematode para- 

 site of the frog, bass, and heron. 189 

 Ova in Gelastocoris. I. A further study of the 

 chromosomes of the Reduviidae. II. The 

 nucleolus in the young oocytes and origin of 

 the 331 



P.\EDOGAMOUS conjugation of Blepharisma 

 undulansSt. The G07 



Parasite of the frog, bass, and heron. On the 

 structure of Clinostomum marginatum, a 

 trematode 189 



Payne, Fernandus. I. A further study of the 

 chromosomes of the Reduviidae. II. The 

 nucleolus in the young oocytes and origin of 

 the ova in Gelastocoris. 331 



Pigeon's egg. A study in egg organization from 

 the first growth period of the oocyte to the 

 beginning of cleavage. The bllateralitv of the 



269 



Polyodon. The heart and arteries of 409 



Primitive reptiles. 637 



REDUVIIDAE. II. The nucleolus in the 



young oocytes and origin of the ova in 



Gelastocoris. I. A further study of the 



chromosomes of the 331 



Reptiles. Primitive 637 



SKILL of Emys lutarla. The development of 

 the 693 



structure of Diplocaului- magnicornls Cope 



and the amphibian order Diplocaulia. The 31 



Sm.^llwood, W. M. and Ci.ahk, Elizabeth G. 

 Chromodoris zebra Meilprln, a distinct species. 



625 



Smith, Bertram G. The embryology of Crypto- 

 branchiis alleghenlensis. 61 



The embryology of Cryptobranchus alle- 

 ghenlensis, including comparisons vvltli some 

 other vertebrates. II. General embryonic 

 and larval development, with special refer- 

 ence to external features. 455 



Spathidium spathula and Actinobolus radians. 

 Observations on the llfe-hLstory of two rare 

 ciliates, 349 



Spermatogonia of Desmognathus fusca. The de- 

 generations in the secondary 231 



Structure and metamorphosis of the fore-gut of 

 Corydalis cornutus L. The 581 



TENNENT, David H. The behavior of the 

 chromosomes in cross-fertilized Echinoid 



eggs. 17 



Testes of hybrids from the guinea and the common 



fowl. Modifications in the 45 



Trematode parasite of the frog, bass, and heron. 



On the structure of Clinostomum marginatum, 



a 189 



Turbellaria. The epithelium of 255 



w 



ILLTSTON, S. W. Primitive reptiles. 



637 



rOUNG, R.T. 



The epithelium of Turl)pl!aria. 



255 



