VERTEBRATA. 

 Vertebrated Animals. 



No. 21. 

 ACIPENSER HUSO. 



STURGEON. 



Ichthyocolla. 



The animal substance. A medicinal agent. 



Isinglass. 



Geog. Position. Ocean, Northern rivers of Europe and 



America. 



Quality. Gelatinous, nutritive. 

 Power. Emollient, demulcent. 

 Use. Aliment for invalids, agent for clarifying or fining 



coffee, wines, beer, &c. 



SCIENTIFIC ANALYSIS. 



Natural Classification. 

 1. DIVISION Vertebrata. CLASS Pisces. 



Ballard and Garrod, Mat. Med. 487. Pereira, Mat. Med. II. 799. Thomson, 

 Mat. Med. 1173. U. S. Disp. 400. Wyatt, Nat. Hist. 98. EC. Disp. U. S. 218. 



GENUS ACIPENSER. 



Ichthyocolle, Colle de Poisson (Fr.), Hausenbleu, Fischleim (Ger.), Colla di 

 Pesce (It.), Cola de Pescada (Sp.). 



THE ESSENTIAL CHARACTERS. 



Skull and vertebral column for the protection of the brain and 

 spinal marrow. 



Blood cold and red, respiring by gills or branchia?, and mov- 

 ing in' the water by the aid of fins. 



Ventrals attached under the pectorals. 



Pelvis immediately suspended to the bones of the shoulder. 



THE SECONDARY CHARACTERS. 



ACIPENSER. Body elongated, angular, and more or less 

 covered with bony plates, implanted upon the skin in longitu- 

 dinal rows. The exterior portion of the head well mailed. 

 Snout pointed, conical. Mouth placed on the under surface 

 of the head, tubular, and without teeth. Branchice free at 



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