40 M. L. Shorey 
probably the sternum, although this was not yet outlined with 
sufficient definiteness to make it certain. On the unoperated 
side all the muscles given inthe previous experiments, though 
smaller and in some cases less definite, could be identified. On 
the operated side only the pectoralis major and the subclavius 
could be distinguished with certainty, but it is probable that two 
other muscles, small and out of position, are the trapezius and 
pectoralis secundus. For these points examine Fig. 6. Besides 
these, small masses of muscular tissue, entirely unidentifiable, are 
developed here and there, and mingled with them are masses of 
glandular tissue, which are apparently portions of the Wolfian 
body, for a connection can be traced to the main mass of this organ. 
Portions of other organs are also out of position, and the general 
confusion that results makes the tracing out of the peripheral 
nervous system on this side extremely difficult, for any muscular 
tissue, no matter how small the amount, nor how much out of 
position, attracts nerve fibers, but Fig. 35, 4, represents the chief 
points. B shows the distribution on the normal side. 
Measurements of the nerve trunks taken as described above 
show the following loss in width: 
PER CENT 
PACH GL Vere eye elas arora svete skort sderte lore sts. sy-tarakaioke’ stake, clea eretclasarsvain/eia vere cisveleley Versa 22 
AMAR bao Sdcado CONC EOORBOdoODaT dagUbGan Gace UOCGHOUe BOmUAOeDOOOGDn nec 30.3 
MOLOMET eer eretescters (efetoreteverehalsashoereteteteie eisiel aie eet ofoletetowsieyetaveholarte)afaiele/asclehs vases cistouslavalenets 28.5 
The loss in the ganglia is shown by this table: 
LATERAL DORSO-VENTRAL 
PER CENT PER CENT 
Gan glionia seiner sisse cider eles eee hier erecta ctelerse rete. 20 14.8 
Grinvattornisict 6HaducadccandnyoUNboap ye docoo gobt at aodeoeuagdcoee 5 ee 32.9 
Cert Sapp adonddopstoads smh gbdoc shod *ideaboodoencQoamIade E27 14.1 
The cells of the ventral horn were not counted, but after a care- 
ful comparison which showed that there was no appreciable 
difference in their size on the two sides of the spinal cord, the 
greatest width of the antero-lateral portion was taken, beginning at 
the end of the 11th ganglion and extending to the end of the 14th. 
A loss of 39.8 per cent in width was found. ‘Through the greater 
part of this region, however, the distance from the central canal 
