362 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



lower orifice or nozzle. This permits giving the clams an occasional 

 douche or bath of salt water while in transit, and the ready removal of 

 stagnant or stale water. The tank is 3 feet in height by 1 foot G inches 

 in diameter. It is provided with three stout handles which turn up, 

 and when so turned, stop at a right angle with the side of the tank, so 

 as not to pinch the hands when the tank is lifted. One of these handles 

 is placed opposite the upper nozzle, the other two at points equidis- 

 tant, ou each side, between the first handle aud the upper nozzle. 



These tanks, substantially made of galvanized iron, handles of the 

 same, also screen cover of galvanized wire, cost complete in San Fran- 

 cisco .$7.80. 



Berkeley, Cal., October 14, 1882. 



60.-BKTIB1V TO OI-OCCESTER OF YOUNO CODFISH HATCHED BY 

 UNITED STATES FISH COiTIiUISSION IN 1S79. 



By BENJAMIN Iff. SPINNEY. 



[From a letter to Prof. S. F. Baird.] 



I have made inquiry about the codfish taken in Gloucester Harbor, 

 and find several of the boat fishermen who are of the opinion that they 

 are the ones that you hatched here in 1878. They are of a gray color 

 and resemble somewhat a deep-water fish. They came in schools about 

 May 1, and staid till the middle or last of July. Sometimes they are 

 very plenty. I saw one man who said that he caught 70 or 80 pounds 

 on a mackerel line while at anchor just off Five Pound Island, and that 

 they would weigh from a half pound to two and a half pounds each. 

 I have seen schools of them myself alongside of my wharf at the head 

 of the harbor. I will try to get a sample aud send you. 



East Gloucester, Mass., August 18, 1883. 



Note. — Compare report of the return of these cod in 1882: Bull. United States Fish 

 Commission, 1882, Vol. II, p. 112.— C. W. S. 



61.— THE CULTIVATION OF CROPPIES IN PONDS. 



By S. P. BAKTLETT. 



[From a letter to Prof. S. F. Baird.] 



In 1880, Colonel Don. Morrison built upon his farm a reservoir and 

 placed in it a few croppy of that year's spawning, which were sent to him 

 by the Illinois Fish Commission. August 30, 1883, he undertook to seine 

 it and take out the catfish. In this he partially failed, and among the 

 fish taken were a number of croppies which weighed nearly two pounds 

 each. One of these he kept and showed me the next day. So in a 

 number of instances as great growth has been shown. 



QuiNCY, 111., September 18, 1883. 



