SYMPATHETIC CELLS: ALBINO RAT 297 
TABLE 6 
Increase in number of large and advanced cells, 19 to 25 » in diameter, during the 
first twenty days of life. “The ratios in the increase in the total number for both 
sexes between one day and twenty days stand at the foot of the column. Superior 
cervical sympathetic ganglion—albino rat 
NUMBER OF LARGE 
SEX AGE BODY WEIGHT CELLS AND OF 
ADVANCED CELLS 
days grams 
o 1 9.6 188 
Q 1 6.3 174 
oO 5 9.0 289 
2 5 iO 306 
rot 11 15.0 291 
2 11 14.0 301 
fot 16 18.9 760 
°) 16 19.0 584 
fot 20 31.7 2508 
& 20 29.5 2248 
: o& 13.34 
Ratios: ie 12.91 
Number of large cells ° 
Chart 3 Based on table 6 and showing the number of large cells present in 
the superior cervical sympathetic ganglion of the albino rat from birth to twenty 
days of age. Males -—————-._ Females --------------- : 
