FURTHER STUDIES OF THE HISTOLOGY OF THE 



THYMUS 



ALWIN M. PAPPENHEIMER 



From the Marine Biological Laboratory, Woods Hole, Mass., and the Department of 

 Pathologij, College of Physicians and Surgeons, Columbia University, 



New York 



TEN FIGURES (FIVE PLATEs) 

 nni . J* ./»,! .-1 



ERRATA 



The American Journal of Anatomy, Volume 13, Number 4, September, 



1912 



Page 428, description of figure 8, for (Reconstruction, fig. 32) read 

 (Reconstruction, fig. 29). 



Page 438, third line, description of figure 13, for figure 33 read 

 figure 30. 



Page 442, figure 16, for 4.5 read 4.S. 



Page 472, description of figure 32, for figure 31 read figure 28. 



Page 473, figure 33, for 5d and 5s, read 4d and 4s. 



tA^-/OV^XlV>V> 



yji. ouitauie lyuipiium iissHB^in ine irog, tne observations 

 were made on tissue obtained from young rats. 



It may be admitted at the outset that clear-cut morphologi- 

 cal evidence of a secretory function on the part of any of the 

 thymic elements, has not been obtained. The observations 

 which were made serve, however, to clarify some of the contro- 

 versial points in the normal structure of the organ and add some 

 new histological details which seem to justify their publication. 



299 



THE AMERICAN- JOURNAL OF ANATOMT, VOL. 14, NO. 3 

 MARCH, 1913 



