206 



Dr Martin Barry on (he 



Fig. 9. 



The minute 



Fig. 10. 



have assumed independent forms ; having ap- 

 propriated the finely granular substance into 

 which they were cast, and thus become young 

 cytoblasts. What was left of the central hya- 

 line has increased in quantity, and, as in figs. 

 2 and 5, has become surrounded with minute 

 globules. Compare with blood-corpuscles above the middle 

 part of fig. 39, in Plate I. 



Fig. 10. The young cytoblasts are larger, 

 globules are no longer seen, having probably 

 entered into the formation of the membrane 

 by which the central hyaline is now surround- 

 ed. This central hyaline is in the same state 

 as the nucleus of the cell in fig. 6. It is a 

 young cytoblast. Compare with several cells 

 in fig. 39, of Plate I. 



Fig. 11. What were young cytoblasts around the central 

 hyaline, are now young cells ; which sur- Pig. 11. 



round what is now a true cytoblast ; for the 

 central hyaline, pellucid in fig. 10, is now 

 finely granular. Compare with (3 in fig. 

 37, and with several cells in fig. 39 of 

 Plate I. 



Figs. 12, 13, 14, 15. To describe the central portion of 

 the nucleus in these figures separately, would be to repeat the 

 description just given of the entire nucleus in figs. 8, 9, 

 10, 11 ; for the appearances are the same, and referable to 

 a continuation of the same process. 



Fig. 12. 



Fiff. li 



Fig. U. 



Firr. 15. 



tt a I 



The only remarks to make concerning figs. 12 to 15, are 

 these, viz., that the layer of young cells already formed in 

 fig. 11, becomes pushed farther and farther into the interior 

 of the cell by the succeeding brood ; and that as each nucleus 



