es 
AUTHOR’S ABSTRACT OF THIS PAPER ISSUED 
BY THE BIBLIOGRAPHIC SERVICE, MAY 24 
FURTHER STUDIES ON RED BONE-MARROW 
I, EXPERIMENTAL 
II. CYTOLOGIC, WITH SPECIAL REFERENCE TO THE DATA SUGGEST- 
ING INTRACELLULAR HEMOCYTOGENIC ACTIVITY ON THE PART 
OF THE GIANT-CELLS, AND TO THE SIGNIFICANCE OF THE SO- 
CALLED MITOTIC FIGURES IN THESE CELLS 
H. E. JORDAN 
Department of Histology and Embryology, University of Virginia Medical School 
ONE PLATE (TWENTY-SEVEN FIGURES) 
CONTENTS 
PRE CRAIN GA te te OA... . s SPRMMMER ee @ staat cles cisieg ot olives ss + alee ns 287 
rer eROCITE EOI Ree «..< : : TAREE ceclatoe Gee eee etal es 287 
ADE SCHIGGIONI ©. peut e eta . . . «a eRM leh o lis td SURE LE cishaerpndh 288 
LES AB io) Cot a Eee Se = Se een eee ee Sank NS ae 290 
Intracellular ery throcyboRenesis meer. ec. oc. «nite, 2 cco tere chee ease wie a oes 290 
GME VAGWrOL ILCrAbULCas.\. . - cee R eR Carte toi Toei a nine clea e ce oats ore 290 
DaSDeRCTaUIONs Le ei ien. ~ REM O sea clterels Siete b.nje brake hh Tahu, oe 292 
Ch WISCUSRIONE: 2 ak) cn ies: < «+ Ie nis CORR ty nae ecto wechaecs oe 294 
The significance of the so-called mitotic figures...................... 298 
GIVE VAC We OFMIVELACULET.< . . . . MMMMEENS 5 coc ca lstn aa eicdles «sige ge eiaajeahe sss 298 
b. Description....... 2 IIE, 06:0. oc OEE OEE Ra RD Ree 301 
Cae DISCUSS] OMB pis seicii ova. 57> of ARMac at RS is eanneueie peranenccusoate 302 
SS CECETETTEE SEY eal ak NS SER OR >... 2 OR OPO A cet OR Om cE Sn STP ES 308 
PIOMOSTADNY.. Po 8 sf ahs ae css Ve I. © oud CORR OR OHO O TE EOE oer ee 310 
I, EXPERIMENTAL 
INTRODUCTION 
In a recent paper on the giant-cells of the yolk-sac and the 
red bone-marrow (12), in which evidence was presented from a 
study of a specimen of pathologic (typhoid) marrow indicating 
that under certain abnormal conditions occasional giant-cells 
may assume an erythrocytogenic function, it was stated that 
287 
