ARTIFICIAL PROPAGATION" OF SHAD 



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Fig. 3. — Egg and larval stages of the shad (Alosa sapidissima) 



Hand I. Two views of an egg after the blastoderm has spread considerably and the embryonic area e is 



well defined . 

 K. View of unhalehed embryo, which developed in a temperature of 45° F., producing distortions of tail. 

 L. An egg envelope with its contained embryo, 44 hours after impregnation, viewed as a transparent 



object. 

 M. An egg envelope with its contained embryo at the beginning of the third day of development. From 



a pliotograph. 

 N. Anterior portion of a young fish on fourth day. To show relations of liver L to yoke V, over which 



the portal vessel pc passes forward to empty into the venous sinus, in common with the anterior and 



posterior jugulars;' and j, 6a bulbus aortae, w ventricle. 

 O. View of fore part of a young fi.sh 17 days old, from ventral side. 



