120 



[October, 1844. 



Dimensions. 



Length of head, ■ 



Breadth posteriorly, 



Length of body, - 



Length of tail, 



Trionyx Mortoni, (young.) 



Description. — Head of moderate size, conoidal, flattened supe- 

 riorly, triangular in front ; snout somewhat prolonged ; eyes of mo- 

 derate size ; jaws horny, and of a light yellow color ; carapace oval, 

 depressed, presenting numerous lines or striae near the upper ex- 

 tremity ; sternum cruciform, rounded anteriorly; posterior ex- 

 tremely triangular ; limbs short, webbed at their extremity, each 

 having three toes. 



Color. — Carapace and surface of the body generally of an ash 

 color, the carapace presenting numerous rounded spots of a white 

 color with black borders, having fourteen or fifteen black blotches in 

 its centre ; similar spots are observed upon the neck, extremities 

 and under surface of the body at its margin ; upon the sternum are 

 observed numerous striae or undulating lines of a dark color ; the 

 posterior part of the sternum is white. 

 Dimensions . 



Feet. 



Length of body, .... 



Breadth, ..... 



Length of head, 



Breadth posteriorly, ... 



Inches. 

 3 



1\ at its middle. 

 1 



5 



5 



The Committee to whom was referred a letter from Prof. 

 Reid, of New York, containing analyses of three Sulphur 

 springs at Sharon, Scoharie county, N. Y., reported for pub- 

 lication the following portion. 



i 



To Messrs. Rushton & Co. 



In compliance with your request I proceeded to Sharon Springs, 

 and there analysed three Springs, named " White Sulphur," " Blue 

 Sulphur," and " Magnesia." The temperature taken at various 

 times, during a four day's residence at the Springs, was invariably 



