39 



Figs. 6, 7, 8, 9, 10, 11. Nerve cells from different parts of the ventricles. No. 8 

 rapid silver, the others picric-acid osmium-bichromate preparations. 



Figure 3 is drawn from the ventricle of the white rat, all other from the mouse. 



presence of nerve cells of considerable size between the sarcous elements. 

 The average about 16X8 (i to 18X12 /n and conform more closely 

 to the type of bipolar cells than to multipolar, though many are not 

 confined to the presence of two protoplasmic arms to their bodies. 

 Situated in the muscular tissue, their rami extend between the sarcous 

 elements, and ramify considerably; but it has not been our good 



