CONTENTS 
No. 1. MARCH 
H. E. Jorpan. Studies on striped muscle structure. VI. The comparative histology 
of the leg and wing muscle of the wasp, with special reference to the phenomenon 
of stripe reversal during contraction and to the genetic relation between contrac- 
tion bands and intercalated dises. Forty-eight figures..................-......-.+. 1 
CHRISTIANNA SmitH. A study of the lipoid content of the kidney tubule. Fourteen 
FV MTRCOM UR WOE DLS UES 1 rsa ania ee WS. Aine ora Rie Cid cPamie ie ere ie ee sisigedeed ers Seaescrene sola ayths: Sancta 69 
Gro. 8. Huntineron. A critique of the theories of pulmonary evolution in the mam- 
aaaed eTm SULSTIM AN PREITO Seegt PACs. Aral rctcie reigns icearcsashe ei Sear widens er neck ahalasiny ae ein oye let suenene ei athe Ee 99 
E. A. Baumeartner, M. T. Netson, AND Wm. Dock. Development of the uterine 
Pape inh TOC VEMe TO UNOS ce) 5 pci-e id vik s, ens Peis ation aie Sa ole ws an = Sel Bence Ses 207 
Entor R. Crark AND Exeanor Linton Cxiark. Reactions of cells in the tail of Am- 
phibian larvae to injected croton oil (aseptic inflammation). Fifteen figures...... 221 
Noe 3y “JiiEY 
James W. Parez. Heart, musculature of the atria. Eight figures (four plates)........ 255 
H. E. Jorpan. Further studies on red bone-marrow. I. Experimental. II. Cyto- 
logic, with special reference to the data suggesting intracellular hemocytogenic ac- 
tivity on the. part of the giant-cells, and to the significance of the so-called mitotic 
figures in these cells. One plate (twenty-seven figures)...............---..0+++05- 287 
CHIKANOSUKE OGawa. The finer ramifications of the human lung. Eight figures..... 315 
CHIKANOSUKE Ocawa. Contributions to the histology of the respiratory spaces of the 
vertebrate lungs. Thirty-eight figures.......... PAPE AS eS IROR AREER BONS NL fa Bs 333 
No. 4. SEPTEMBER 
ALEXANDER 8S. Beac. Absence of the vena cava inferior in a 12-mm. pig embryo, asso- 
ciated with the drainage of the portal system into the cardinal system. Three 
Hayato Arar. On the postnatal development of the ovary (albino rat), with especial 
neterencestontuuecsnumbernot-ova: Hourcharts: ..c oa. Gade: oe oc cee Sect aerate 405 
Leon Avucustus Hausman. A micrological investigation of the hair structure of the 
Monotremata. Three text figures and four plates (ninety-eight figures)........... 463 
iil 
Cee 
