496 



M. J. GREENMAN 



To put the results into more condensed form, we have arranged 

 table 8. 



TABLE 8 



If we deal with the averages of this table, we note that the 

 first counts were 7195 micra proximal to the lesion or practi- 

 cally 7 mrn. and that the average of the first counts is 2295. 

 Referring to table 3, which presents the data of an operated 

 series and is, therefore, comparable with the data of table 8, 

 we note that the average number of fibers in the control of this 

 series is 2022. Thus we see that the average number of fibers 

 in the operated nerves 7 mm. above the lesions is more than 13 

 per cent greater than the average of the controls given in table 3. 



It should be borne in mind that the number of fibers increases 

 with the body weight in growing animals. The average body 

 weight in the series of table 8 is 129 grams, while the average 

 weight of the series of table 3 is 158.3 grams. But, nevertheless, 

 the series of table 8 has the greater average number of fibers. 



We conclude, therefore, that more than 13 per cent of the in- 

 crease in number of fibers of the regenerated nerves takes place 

 at a point higher than 7 mm. proximal to the lesion. 



Referring to table 7, it will be observed in no. 220 that the 

 fifth count (distal to the lesion), unlike that of no. 210 and 211, 

 exceeds the fourth by 281, so that instead of a decrease in num- 

 ber as 'we pass distally from the lesion there is in this case a 

 slight increase. This is probably due to the fact that medulla- 

 tion has begun to disappear from some of the excess of new 



