THE MONTHLY MICROSCOPICAL JOURNAL, FEB. 1ST, 1873. 



PLATE VI. 



Mci':,; b 



Very liQ3 nerve-fibres witb connective tissue corpuscles and pigment cells, ramifying in the connective 

 tissue at the ba«e of the heart of Lh(* hyla a. Nerve-fibre with nucleus. Its relation to the connective 

 tissue corpuscles, 6, and to the process of a piftmentcell,c, is well seen. The fine nerve-fibre, less than the 

 TohCoo of an inch in diameter.is not continuous with any of these structures. It passes near thexn, but 

 is not incorporated with them. All are dev^^l^ned pari passu, but are structurally independent. 



X 2800. 1862. 



RELATION OF FINE NERVE-FIBRES TO PROCESSES OF PIGMENT CELLS 

 OF THE FROG. 



