76 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



33.— amekica:^ i.aivd-l,ocke;i> sajlitioiv aivd i>akx: tkoijt in 



FKAIVt'E. 



[Extract from Proceedings of ILe Society of Acclimatization.*] 



Prof. Spencer F. Baird aimoiinces his intention of making a shipment 

 to the society soon of 15,000 land-locked salmon eggs {Salmo solar var. 

 Sebago). Mr. Eaveret-Wattel recalls in this connection that the land- 

 locked salmon of North America, which is not a migratory fish, and the 

 conditions of whose existence thus resemble those of the trout, would 

 be a very interesting species to acquire for our fresh waters, consider- 

 ing the excellent quality of its flesh and the rapidity of its growth. 



Tlie president of the Linnsean Society of the North of France sends a 

 report on the results yielded by the eggs of lake trout and of Salmo 

 namayctisk sent to that society. 



Paiiis, France, March, 1883. 



34.-IVlTITIBEie OF EOOS IiV THE CAOID^. 



By MATTHIAS DIJNIV. 

 [From the Zoologist for Marcli, 1884.] 



Last week I was fortunate to get hold of two of the Oadidce heavy 

 with roe. The first was Gadus pollachius, or the whiting pollack of Couch, 

 of about 12 pounds weight, the roe of which was 15 ounces. On weigh- 

 ing a half grain, and counting them and computing the number, I found 

 it contained 4,200,000 eggs. My next fish was the Gadus virens, or 

 the coal-fish of Couch, and 21 pounds weight the roe being 33 ounces. 

 Here I again weighed and counted a half grain, and on working out the 

 result I found it to contain 8,200,000 ova. There was not the least dif- 

 ficulty at getting at these results. After allowing the eggs to remain 

 in boiling water a few minutes they readily separated, and a magnifying 

 glass and needle soon told the story. From these figures I think we 

 may reasonably expect that whiting pollacks of 20 pounds weight may 

 be expe(!ted to give about 7,000,000 eggs, and coal-fish of 30 pounds 

 weight full 12,000,000 of eggs, t 



Mevagissey, Corjswall, January 22, 3884. 



* Bulletin Mensuel de la Soci6t€ Nationals d'Acclimatation de France, Mars, 1883. 

 p. 17:3. 



+ Some further estimates of the number of eggs in the Gadidae will be found in Re- 

 port U. S. F. C. 1878, pp. 733-4. Mr. R. E. Earll there reports a 23| lb. pollack or 

 coal-fish {G. virens) tohave contained 4,029,200 eggs; anda701b. cod ((?. viacrocephalus 

 Gunther) to have contained over 9,000,000 eggs. — C. W. S. 



