318 M. Cuvier ori the Domestication of Animals. 



its wants, whether for the purpose of satisfying or of weakening 

 them. 



Hence the principle that violence would be ineffectual for dis- 

 posing a wild animal to obedience. Not being naturally inclin- 

 ed to approach us who are not of its species, it would flee from 

 us, if it were free, at the first feeling of fear which we should 

 make it experience, or it would hold us in aversion if it were 

 captive. The only method by which we can attract it and 

 render it familiar is by inspiring it with confidence, and this 

 confidence can only be inspired by benefits. It is therefore by 

 such benefits that all attempts to reduce an animal to a state of 

 domestication ought to commence. 



Good treatment especially contributes to develope the instinct 

 of sociability, and to diminish proportionally all the propensi- 

 ties that might act in opposition to it ; and for this reason, no 

 subjection in animals is ever so complete as that which is ob- 

 tained by operating an amelioration of their condition. 

 (To be continned.) 



Experiments zvith Bottles swik into the Sea^ made duri7ig a 

 Voyage from Nexv South Wales. By Mr James Dunlop. 

 In a letter to Professor Jameson. 



Sir, 



xIaving on my voyage (per ship Portland) from New South 

 Wales made the following experiments with bottles, &c. sunk 

 into the sea, if you find a description of them to be of service, 

 they ai'e at your disposal. 



Experiment 1. — April 9, in Lat. 24° South, and Long. 43° 

 l(y West, the ship becalmed off* Rio de Janeiro, the boat was 

 lowered down, and rowed a short distance from the ship ; the 

 deep-sea lead was let down 80 fathoms with the following ex- 

 periments attached to it, consisting of a common porter bottle 

 well corked and pitched over, and secured by a covering of new 

 canvas, which was also covered with a thick coat of pitch ; also 

 a tin canister with holes pierced in its bottom, and open at the 

 top, in which were placed four small thermometer tubes filled 



