PLATE XIV. 

 DISTRIBUTION OF ULTIMATE NERVE FIBRES TO MUSCLE. 



Distribution of finest nerve fibres which result from the division of dark-bordered nerve fibres to 



the elementary muscular fibres of the thin mylo-hyoid muscle of the hyla or green tree frog. The 



diameter of each muscular fibre is less than that of a human red blood corpuscle. The capillaries 



are injected blue. X 1300. 



To,r,oo of an inch 



x 1800. 



[To face page 2S3. 



