[3] COD HATCniNG AT WOOD's ROLL, MASS., lS80-'8l. 1129 



hatchery, 25,000 young fish were obtained. These were sent in charge 

 of special messenger to Annapolis and deposited in the Chesapeake 

 Bay at that point. 



The range of the investigation at Wood's Uoll was largely limited 

 from the fact that we were able to obtain during the time that I was 

 there, only a single lot of spawning fish, from which, though some mill- 

 ions of eggs were secured, the larger part were lost, and we obtained 

 only some four or five tiiousand fry. The succession of spawning fish 

 that we had hoped for was not obtained, the extreme cokl weather hav- 

 ing prevented it. The station was accordingly abandoned, and the ex- 

 periments discontinued before the appearance of the schools in Ii)suich 

 Bay. Had the station been kept open, and the supplies of eggs obtained, 

 which would have been available from this source, I have no doubt the 

 result of the winter's work would have been to establish precise methods 

 and forms of ap])aratus for the hatching of the cod eg'^ on a large scale. 



In connection with this work important investigations were conducted 

 by Professor Eyder in regard to the embryology of the cod-fish. Re- 

 sults of these investigations have already been communicated in detail 

 by him to the Commissioner. 



