JOURNAL OF MICROSCOPICAL SCIENCE. 



DESCRIPTION OF PLATE III, 



Illustrating Dr. Mcintosh's paper on Experiments on Young 



Salmon. 



The figure represents in outline the general structure of a salmon one day 

 old, reduced from a drawing nineteen inches in length. 



Fig. 



a. — Ventricle. 



b. — Auricle. 



c. — Caudal capillaries. 



d. — Venous dilatation at tail. 



e. — Cardinal vein. 



e' — Branches of the latter. 

 /.—Aorta. 



/'. — Larger branches of the latter. 

 /". — Smaller branches. 



g. — Vitelline vein. 



h. — Curving vessel of the pectoral fin. 



i. — Branchial coils. 



k. — Visceral (portal) vein lying beneath the digestive tract, 



A B. — Section beyond the chorda. 



B c. — Section within the bend of the chorda. 



D. — Outline of portion cut from the fatty fin in its early stale. The 

 dotted internal lines represent the condition of the parts 

 some hours afterwards. 



