MYELINATED FIBERS—PERONEAL NERVE OF RAT 417 
3.7 per cent less sheath with a corresponding increase in axis 
The animals were of about the same 
in the exercised animal. 
TABLE 8 
Data from tables 2, 3, 4 and 6 
NO. 
347 
376 
394 
438 
395 
437 
325 
375 
374 
373 
342 
380 
381 
388 
403 
439 
443 
328 
340 
384 
385 
370 
369 
363 
350 
352 
353 
424 
425 
426 
445 
446 
447 
AGE 
147 
149 
150 
150 
150 
150 
150 
150 
150 
150 
151 
151 
151 
151 
151 
151 
151 
151 
152 
153 
153 
154 
154 
156 
162 
251 
251 
335 
335 
330 
454 
454 
454 
NUMBER PERONEAL FIBERS 
Right 
2040 
2058 
2045 
2103 
2091 
2166 
1959 
2163 
1920 
1912 
2078 
2123 
1985 
1967 
1982 
1989 
2039 
2179 
2175 
1931 
1887 
2125 
2013 
2080 
2253 
2240 
2240 
2122 
2145 
2122 
2047 
1973 
2040 
Left 
2018 
2038 
2048 
2113 
2134 
2150 
1892 
2117 
1870 
1903 
2158 
2088 
2029 
1985 
2003 
1897 
2025 
2068 
2131 
1925 
2085 
2093 
2090 
2143 
2123 
2230 
2296 
2000 
2006 
2165 
1988 
1863 
1916 
AVERAGE OF 
RIGHT AND LEFT 
PERONEAL FIBERS 
2037 
2040 
2124 
2251 
2093 
1971 
