286 



C. EYZAGUIRRE 



A 



Fig. 1. A. Unstained lobster slow receptor cell under dark field illumination. Six 

 large dendrites emerge from the cell body (nucleus a little off center to right) 

 with their distal portions invisible, embedded in the tissue of the receptor muscle 

 strand. The axon is seen on the opposite side from the dendrites. (From Ezyaguirre 

 and Kuffler, /. Gen. Physiol. 39 : 87-119, 1955a). b. Drawing of a silver stained 

 preparation of a fast crayfish receptor cell. A/, motor axon. A, accessory fiber. 

 (From Florey and Florey, /. Gen. Physiol. 39 : 69-85, 1955.) 



