WITH FISH AND FISHING. 247 



the sea. The fish are of a dark brown colour, and 

 therefore appear very distinctly on the light ground 

 of the stone ; they lie flat between the laminse ; 

 their profile, and their several parts, are little, 

 if at all, distorted from their natural shape and 

 dimensions ; their whole form is well defined. 

 These quarries belong to the Marquis Gazola, who 

 has already in his cabinet one hundred different 

 species of these fish, with a scientific catalogue of 

 them. For other particulars see the Transactions 

 of the Royal Irish Academy, vol. v. 



Temperature of Fishes and warm-blooded 

 Animals. Dr. Davy, in a paper read before the 

 Royal Society, stated that he had occasion to 

 observe, many years ago, that the bonito had a 

 temperature of 99 Fahrenheit, when the surround- 

 ing medium was 80 5', and that it therefore con- 

 stituted an exception to the generally received 

 rule, that fishes are universally cold-blooded. 



Having found that the gills of the common 

 thunny of the Mediterranean Sea were supplied 

 with nerves of unusual magnitude, that the heart 

 of this latter fish was very powerful, and that its 

 muscles were of a dark colour, the Doctor was led 

 to conjecture that, like the bonito, it was warm- 

 blooded. The author endeavours to extend this 

 analogy to others of the same family. Edin. New 

 Phil. Journal, vol. xix. No. 37. 



