Smithsonian Report, 1312, — Legendre. 



Plate 3. 



31 hours. 



(Partcf ligo) 



FiQ. 6. — Peripheric Part of a Spinal Ganglion of an Adult Dog, Kept Alive for 

 27 Hours; the Nerve Cells have Grown up Many New Extensions. (Legendre 

 and Minot, 1911.' 



