. The Journal of comparative neurology and psychology. the character-istics of the normal ganglion. In the center is a clear area representing thedorsal root fibers. Note the size of the large cells, also the large number ofsmall cells. Fig. 2. Zeiss, Ocular 4. Objective 8.—Drawing traced from a photo-micro-graph of a transverse section through the operated second cervical ganglionof a young rat twenty days after the operation. This section illustrates thealterations which have occurred in the ganglion as a result of division of thenerve. It can be readily seen by comparing Figs. 1 and 2 that
. The Journal of comparative neurology and psychology. the character-istics of the normal ganglion. In the center is a clear area representing thedorsal root fibers. Note the size of the large cells, also the large number ofsmall cells. Fig. 2. Zeiss, Ocular 4. Objective 8.—Drawing traced from a photo-micro-graph of a transverse section through the operated second cervical ganglionof a young rat twenty days after the operation. This section illustrates thealterations which have occurred in the ganglion as a result of division of thenerve. It can be readily seen by comparing Figs. 1 and 2 that there haveoccurred both an atrophy of the ganglion as a whole and a decrease in thenumber of the cells. It is apparent at a glance that the cells in the operatedganglion are predominately of the medium size. None are as large as thelargest cells seen in the normal ganglion, due to the fact that the cells havealready begun to show some atrophy. The most striking feature is the lossof the small cells. RANSON, Alterations in Spinal Ganglion Cells. 151. Fig. 1.
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