SUBJECT AND AUTHOR INDEX 
BNORMAL OVA: end of the first to the 
end of the ninth day. The develop- 
ment of the albino rat, Mus norvegicus 
albinus. II 
ADDISON, Wituram H. F. and Appieton, J. 
L., Jr. The structure and growth of the 
incisor teeth of the albino rat............ 
ALLIS, EpWARD PHEtps, JR. The homologies 
of the hyomandibula of the gnathostome 
(NaS }s 1a seo ek eR AE Oe ee i a ge 5 
Anatomy. Ciliary mechanisms of lamelli- 
branchs with descriptions of............. 
Anatomy of Heterodontus francisci. II. The 
endoskeleton., “Whe! ssc. ses eee ee 
Appendage of the male in the Phyllopod crus- 
tacean Thamnocephalus platyurus Pack- 
ard. The morphology of the frontal.... 7 
APPLETON, J. L., Jk., ADDISON, WILLIAM H. F. 
and. The structure and growth of the in- 
cisor teeth of the albino rat.............. 
Astroscopus guttatus. A peculiar structure 
in the electroplax of the star-gazer,...... 
AUMGARTNER, E. A. The develop- 
ee of the hypophysis i in Squalus acan- 
Bdellodritas phiiadelphieus ‘The embryology 
Beckertirs ‘paper on “The genesis of the 
plasma-structure in Hydractinia echin- 
ata,’”’ and reply by Miss Beckwith. Com- 
Ment OnVMIsnees beeen eret aes ces oct e 
ASH, J. R.j Kepner, Wn. A. and. Cili- 
ated pits of Stenostoma................. y 
Cells. IV. Protoplasmic differentiation in the 
oocytes of certain Hymenoptera. Studies 
ODN EER yee cre ee tae es tee 
Characters. Chromosome studies. III. In- 
equalities and deficiencies in homologous 
chromosomes: their bearing upon synap- 
Bisrand: the llossioiuniiaee meee on ern a. 
Chromosome studies. III. Inequalities and 
deficiencies in homologous chromosomes: 
their bearing upon synapsis and the loss of 
Wat ChAarachersie a. eeeeee me emetic & 
Chromosomes: their bearing upon synapsis 
and the loss of unit characters. Chromo- 
some studies. III. Inequalities and de- 
ficiencies in homologous..............-...- 
Ciliary mechanisms of lamellibranchs with 
descriptions of anatomy.................. 
Ciliated pits of Stenostoma.................. 
ANIEL, J. Frank. The anatomy of 
Heterodontus francisci. II. The endo- 
Skeletons My seid ae ee: 
LeprererR, Pautine H. Oogenesis in Philo- 
Samia cyMphiareen 1.7 atm nave nee oe 
Deficiencies in homologous chromosomes: 
their bearing upon synapsis and the loss 
of unit characters. Chromosome studies. 
Tievinegualiinesiands:.snseeeeeeecse a... 
Development of the albino rat, Mus norvegi- 
eus albinus. I. From the pronuclear 
stage to the stage of mesoderm anlage; 
cue of the first to the end of the ninth 
day. 
359 
391 
143 
109 
109 
109 
625 
235 
109 
Development of the hypophysis in Squalus 
sacanthias;, “Rhettbs-sssenee eee ee 
Differentiation in the oocytes of certain Hy- 
menoptera. Studies on germ cells. IV. 
Profoplasmiciscn one nee eee 
CHINATA,” and reply by Miss Beck- 
with. Comment on Miss Beckwith’s 
paper on ‘‘The genesis of the plasma- 
structure in Hydractinia................. ‘ 
Electroplax of the star-gazer, Astroscopus 
guttatus. A peculiar structure in the.. 
Hiabrvolosy of Bdellodrilus philadelphicus. 
Endoskeleton. 
tus francisci. 
Evans, A. T. The morphology of the frontal 
appendage of the male in the Phyllopod 
crustacean Thamnocephalus  platyurus 
Pa ckandmian ke sans stare ccm coe enon etee 
ERTILIZATION in Platynereis 
lops. 
Fishes. The homologies of the hyomandibula 
ofthe enathostomes: sc. cen oo een teens 
Frontal appendage of the male in the Phyllo- 
pod crustacean Thamnocephalus platyu- 
mega- 
rus Packard. The morphology of the... 7 
AZER, Astroscopus guttatus. A pecu- 
liar structure in the electroplax of the 
Fa] Ih ih te 8 tis ak SOCIO RICA Oe CAS 
Germ cells. IV. Protoplasmie  differentia- 
tion in the oocytes of certain Hymenop- 
PETA,» ISHUGIES OM yacr nc cnt rata soe ee 
Gnathostome fishes. The homologies of the 
hyomeandilbulajon bhesssss sess seis menace 
EGNER, Ropert W. Studies on germ 
cells. IV. Protoplasmie differentia- 
tion in the oocytes of certain Hymen- 
OPUCOLA tase sieyessttae Aculeae Cakes cutee ie poaeenetrenyaie 
HERWERDEN, MARIANNA VAN. Comment 
on Miss Beckwith’s paper on ‘‘The gene- 
sis of the plasma-structure in Hydrac- 
tinia echinata,’’ and reply by Miss Beck- 
at Di. eas ae cp ee eles pace nol teens imate & 
Heterodontus franciseci. II. The endoskele- 
tons he sanatomy, iole-eeer eee ee teas 
Homologies of the hyomandibula of the 
enathostome fishes. The.. 
Huser, G. Cart. The development ‘of the 
albino rat, Mus norvegicus albinus. I. 
From the pronuclear stage to the stage of 
mesoderm anlage; end of the first to the 
endioftbhemnthidayecn oem eee 2 
Huser, G. Cart. The development of the 
albino rat, Mus norvegicus albinus. II. 
Abnormal ova; end of the first to the end 
Of the minthedaye sae eee peer ete ae 
Huaeues, James G., Jr. A peculiar struc- 
ture in the electroplax of the star-gazer, 
AStroscopus) Puttatuss. joc ce elects 
Hydractinia echinata,’’ and reply by Miss 
Beckwith. Comment on Miss Beckwith’s 
paper on ‘‘The genesis of the plasma- 
Structure wi ter isco won cece G nee mca 
The morphology of normal..... : 
495 
309 
97 
387 
