man Heat through the action of a Magnet, etc. 119 
‘ awh great suffering from a cancer in the stomach, unwilling to the last 
to take council from the doctors or his friends. 
yle, Diderot, Voltaire, were his favorite authors. His tastes and 
habits were of extreme simplicity ; he lived on little and had no diver- 
sion but the theatre and the promenade. He saw his mother Pepa 
nately married, and he suffered much from his father-in-law who 
physician ; and this may have occasioned his celibacy, and his batted 
of medicine Ie, 
ie Z roduc through the action of the magnet on bodies in motion. 
te Ths gyros cope of Foucault, described in a former volume of this 
it Journal, is far from having said its last word. The meee has just es- 
8 eee tablished by means of it, the recent views as to the relation bet 
‘ mechanical force and heat. M. Babinet announced the ahs to the 
Ac cademy on the 17th of September last with a vivacity and enthusi- 
"asm \ quite indescribable, and which was shared by his auditors. 
0. bronze connected with a: toothed ‘pinion o of a motive wheel, which 
ndle and is made by the hand to make 150 to be turns per 
cond. To render the action of the magnet more ective, two 
ercury rise to 
S$ quite hoe to the hand. 
“ara 
rege ve a machine 
magnets, W Pi 
a public suecieal this curious 
