MINUTES OF MEETINGS. 75 



Observations. — On the 9th of October, and during the 

 three succeeding days, of the last year, an immense shoal 

 of this species of fish migrated from Lake Erie into the 

 shallow and rapid water of the mouth of Rocky River. 

 They crowded in compact masses along the margins of the 

 stream, so as to occupy the water for at least eighteen 

 inches from the shore. Several quarts could be taken by 

 one sweep of the millinet butterfly catcher. The object of 

 this movement was not apparent. Great numbers of Black 

 Bass {Orystes Faciatus^ Agass.,) collected about them 

 and were actively engaged in capturing every individual 

 who strayed from the main body into the deeper adjacent 

 waters. 



From the brief characters of the genus AHu7"nus of 

 Heck., enumerated by Prof. Agassiz in his "Lake Supe- 

 rior," I am disposed to consider this as one of its species. 



Before I had leisure to complete my descriptions, not 

 only the color of the specimens was destroyed by the 

 alcohol in which they were immersed, but the texture of 

 the fins was broken down so much as to render the number 

 of their rays, in some instances, uncertain. 



Cleveland, January 31, 1854. 



Dr. Garlick exhibited specimens of the ova of the Trout, 

 artificially impregnated, in which the young fish were seen 

 in various stages of development. 



The Secretary presented a paper by H. K. Brown, Esq., 

 which was referred to a special committee. 



Dr. Ackley presented some further remarks in relation 

 to the Rattlesnake. 



Prof. St. John presented a letter from Mr. Morris Miller, 

 on some Drift phenomena, which was referred to a special 

 committee. 



