ULTRASTRUCTURE AND HISTO PHYSIOLOGY OF MEMBRANES 15 



Table 



The rate of accumulation of mitotic figures after colchicine 

 taste bud germinal epithelium 



5hr4.76 

 2hrl.26 



3.50 cells entering mitosis in 3 hr 



3.50 



= 1.16 cells per hr 



3 



any of the dividing cells entered the taste buds and at what rate, we injected 

 rabbits with l//c/100 g body weight of tritiated thymidine at 1900 mc/mM 

 specific activity. Radioautographs were prepared for examination in the 



;0 20 50 100 200 300 400 500 

 H^ HOURS 



Text-fig. IV. 



Hght and electron microscope. Text-figure IV is a curve plotted from our 

 data. At point A (about 24 hr) few cells are labeled and these are all 



