714 
ATURATION, cleavage, and entoderm 
formation. IV. The bilaminar blas- 
tocyst. Studies in the development of 
the opossum (Didelphys virginiana L.) 
III. Description of new material on... 1 
Membracid, Thelia bimaculata (Fabr.). I. 
External changes induced by Aphelopus 
theliae (Gahan). The sexual characteris- 
ticsiof theteeeaw cee te ee ee 
Metamorphosis. The development of the 
thyreoid glands of Bufo and their normal 
relation tO ews tio ae ee ee 
Meyer, ARTHUR WILLIAM. On the nature, 
occurrence, and identity of the plasma 
cellsiof slotbauers..caee ee ee ee 
Musculature of the Japanese. 
Myodome and trigemino-facialis chamber of 
fishes and the corresponding cavities in 
higherivertebrates) “Ghe!..).:..-..e:eee 
Noe Waro. A study on the 
chromosomes in the spermatogenesis of 
the stonefly, Perla immarginata Say, 
with special reference to the question of 
SVMAPSISM Sik. oc eE Se ee ee eae 
Nasal apertures in the gnathostome fishes. 
Wheplipssandiithey eae. sweet eae 
489 
327 
637 
207 
509 
145 
Orn oe (Didelphys virginiana L.). 
III. Description of new material on 
maturation, cleavage, and entoderm for- 
mation. IV. The bilaminar blastocyst. 
Studies in the development of the........ 1 
pecs The seasonal cycle in the sperm- 
APVROMUNC soe csc Nate oe ee eee 
Perla immarginata Say, with special reference 
to the question of synapsis. A study on 
the chromosomes in the spermatogenesis 
ofsthemmpnetiv. ses sn ont ane meee ee 
Plasma cells of Hofbauer. On the nature, oc- 
currence, and identity of the............. 32 
eee. AvourH R. The development 
of the gastric glands in Squalus acan- 
thias 351 
INDEX 
EXUAL activities of the squid, Loligo 
pealii (Les.). II. The spermatophore: 
its structure, ejaculation, and formation. 379 
Sexual characteristics of the membracid, The- 
lia bimaculata (Fabr.). I. External 
changes induced by Aphelopus theliae 
(Gahan)! “They, 12) 2:8 Os! ee eee 
Spermary of the perch. Theseasonal cycle in 
531 
681 
Spermatogenesis of the stonefly, Perla immar- 
ginata Say, with special reference to the 
A study on the 
question of synapsis. 
chromosomes in thé 
Spermatophore: is structure, ejaculation, and 
formation. Sexualactivities of the squid, 
Loligo peal (Ges:)) Ik. ‘Lhe. 2.23 
Squid, Loligo pealii (Les.). II. The sperma- 
tophore: its structure, ejaculation, and 
formation. Sexual activities of the...... 
Stonefly, Perlaimmarginata Say, with special 
reference to the question of synapsis. A 
study on the chromosomes in the sperma- 
togenesis ofthe sizn ane eee one eee 
Synapsis. A study on the chromosomes in the 
spermatogenesis of the stonefly, Perla im- 
marginata Say, with special reference to 
theiquestion.ofy.. Mtoe see ee eee ee 
379 
509 
fee bimaculata (Fabr.). I. External 
changes induced by Aphelopus theliae 
(Gahan), The sexual characteristics of 
whe smenrbracid yeas alae oe eee ee 
Theliae (Gahan). The sexual characteristics 
of the membracid, Thelia bimaculata 
(Fabr.) I. External changes induced by 
Aphelopus is: i202 see ae eee 
Thyreoid glands of Bufo and their normal re- 
lation to metamorphosis. The develop- 
ment: ofjthess sets. sear eee eee 
Tiger beetles (Cicindelidae). A comparative 
study of the chromosomes of the......... 437 
Trigemino-facialis chamber of fishes and the 
corresponding cavities in higher verte- 
brates. The myodome and 
TURNER, CLARENCE L. The seasonal cycle 
in the spermary of the perch............. 681 
531 
489 
