AUTHOR’S ABSTRACT OF THIS PAPER ISSUED 
BY THE BIBLIOGRAPHIC SERVICE, NOVEMBER 7 
THE GROWTH OF THE CENTRAL NERVOUS SYSTEM IN 
THE HUMAN FETUS AS EXPRESSED BY GRAPHIC 
ANALYSIS AND EMPIRICAL FORMULAE 
HALBERT L. DUNN 
Department of Anatomy, University of Minnesota 
THIRTY-EIGHT FIGURES 
CONTENTS 
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DU eHE ELON ee ers re MERI Seah AR i fed asage, Saja i Milde abe Gina Ree eK gars 407 
Methodstomeollectimesdatanse: sss see osteo ae Pee et Sn ere ees Se 409 
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Growth of the central nervous system as a whole.....................- 417 
Crowcuromuecncepnalomeennns. here os yan ree tne hermes tale 419 
Crowonombacwercorumisn tt): Sttleis Se Mes Pd: DR 423 
Carnal ls THescebe me 25) sei Ss eh.)s cede os he AE pam beter Sletaere 2 hu 435 
owas bie, ane ane: meduila ys soo k Shes cc a/c soo ke oe AAS 6G copied 442 
GARONA An OLE AH) CxS Fogel aE Oe Sia gem aaa ate AE Rik ee mn Ne oie et eet et eee ea ys 447 
Growmubrotethelspinalecords: ce aratritad Aas ey tee Male oe aa here 451 
BP IGMSETOND e780 ce F de Sieh cis te Pa commons 8k ute iu) Fo 2 ban ced eke 456 
Growth of the central nervous system as a whole...................... 458 
SHETW DT TDE Weer My By RS a Ae 9 nay anne le DPN tear at Kis ke Bane a aaa can 488 
INTRODUCTION 
The growth of the human central nervous system has long been 
a matter of interest and many studies on this subject have been 
published, some of the earlier ones dating back almost a century. 
These investigations have given us a general knowledge of the 
growth of the brain as a whole from birth to maturity and have 
furnished us some information regarding the modifications in 
absolute and relative size of the various brain parts in early post- 
natal life. 
405 
