696 
Mendelian ratio in relation to certain orthop- 
teran chromosomes. The.........-....... 
Menippe mercenaria. ‘The germ-cells and the 
process of fertilization in the erab,......... 
Mercenaria. The germ-cells and the ROCESS 
of fertilization in the crab, Menippe.. 
Miiuier, Witi1aAM Snow. The air spaces ‘in 
the lune of the cat-wese ceri ae 
‘Mitochondria:’ their origin, nature and réle 
in fertilization. The spermatogenesis 
of Ascaris megalocephala with special ref- 
erence to the two cytoplasmic inclusions, 
the refractive body and the............... 4 
Muscidarum Richardson. Studies on the 
habits and development 2f a hymenopter- 
OuSs parasite, Spalanolan-..- se esaacn ene 
MyolozyiotPolyodom. Thes--..-----+-.--.-4- 
ATURE and role in fertilization. The 
spermatogenesis of Ascaris megaloceph- 
ala with special reference to the two 
eytoplasmic inclusions, the refractive 
body and the ‘mitochondria:’ their origin, 
Nerves of Siren lacertina. The cranial........ 245 
Norris, H. W. The cranial nerves of Siren 
TAC OT GLI ANS Sh sn eee nee ree cree ee 
Novemecincta. Polyembryonic development: 
TRE EUSA Meee cts sic etary isis Sietsvont ache trees 
RGANS in the gymnotid eel, Steato- 
genys elegans (Steindachner). A study 
of the submental filaments considered as 
Proballevelectrie:s:- we eevcsacme-\ow sree eee. 
Origin, nature and role in fertilization. The 
spermatogenesis of Ascaris megalocephala 
with special reference to the two cytoplas- 
mie inclusions, the refractive body and 
jhe mitoehondna:) their. ss... eee 
Origin of mammals. Critique of recent work 
on the morphology of the vertebrate skull, 
especially in relation to the................ 
Orthopteran chromosomes. The Mendelian 
ratio in relation tocertain.................. 4 
ARASITES of Simulium larvae. Further 
Observations OnsuhOerer ee an se ee eeeee 
Parasite, Spalangia muscidarum Richardson. 
Studies on the habits and development 
PatrEerson, J. T. Beis aeons develop- 
ment in Tatusia novemeincta.............. 
Polyembryonic development in Tatusia no- 
VEMICIN Cha ore cee ee eee 
Polyodons » Mheamyoloey of... 4s... seeeenee 
ATIO in relation to certain orthopteran 
chromosomes. The Mendelian.......... 
RicHarRpDson, C.H. Studieson the habits and 
development of a hymenopterous para- 
site, Spalangia muscidarum Richardson... $ 
INDEX 
Role in fertilization. The spermatogenesis 
of Ascaris megalocephala with special 
reference to the two cytoplasmic inclu- 
sions, the refractive body and the ‘mito- 
chondria: their origin, natureand......... 421 
Se cells of Taenia teniaeformis. Method 
of cell-diyisionmmrtheysets........- eee 205 
Simulium larvae. Further observations on 
the parasites Of 44. se eens cies eects 43 
Siren lacertina. Thecranialnervesof......... 245 
Skull, especially in relation to the origin of 
mammals. Critique of recent work on 
the morphology of the vertebrate.......... 1 
Spaces in the lung of the cat. The air........ 459 
Spalangia muscidarum Richardson. Studies 
on the habits and development of a hy- 
menopterous) parasites... eee eee eee 513 
Spermatogenesis of Ascaris megalocephala 
with special reference to the two cytoplas- 
mic inclusions, the refractive body and 
the ‘mitochondria’: their origin, nature 
_ and réle in fertilization. The............. 421 
SrrickLanp, E. Harotp. Further observa- 
tions on the parasites of Simulium larvae. . 43 
Submental filaments considered as probable 
electric organs in the gymnotid eel, Steato- 
genvs elegans (Steindachner). A study of 
(it Mean EN Garin RMI etme rs cis oko to So. 685 
AENIA teniaeformis. Method of cell-di- 
Tatusia novemeincta. Polvembivente devel- 
OPMENt LW siuie arene ore cure deal repent eee 559 
Teniaeformis. Method of cell-division in the 
sex cells:of Taeniay. «...0. Atha: ences oeeeaeee 205 
Transformation of some of the early vitelline 
vessels in Amphibia. The development 
of the blood andithen..\--ceeereceee eee 339 
ERTEBRATE skull, especially in relation 
to the origin of mammals. Critique of re- 
cent work on the morphology of the 1 
Vessels in Amphibia. The development of 
the blood and the transformation of some 
of theearly, vitelline 20. onsets eee 339 
Vitelline vessels in Amphibia. The develop- 
ment of the blood and the transformation 
Of ROMEO! the eamlyee ecm eee ere 339 
ILDMAN, EHpwarp 9H. The spermato- 
V\ genesis of Ascaris megalocephala with 
special reference to the two cytoplasmic 
inclusions, the refractive body and the 
‘mitochondria’: their origin, nature and 
role in fertilization..... ... 
