VOYAGE TO MADAGASCAR, I4t 



a falutary influence in the colonies, by mak- 

 ing tlic arms of the Have lefs ufeful to hh 

 mafter. It cannot, therefore, be denied^ 

 that powerful agents, atid vigorous animals, 

 with the affiftance of machinery, may befub- 

 ftituted, with advantage, in the room of flaves. 

 The private intereft of the planters is thus 

 reconciled with the principles of juftice and 

 humanity, to promote induftry on their 

 eftates. Such a new order of things muft, 

 doubtlefs, gradually aboHfli flavery ; and 

 this change, effeded in that manner, will be 

 wife arid prudent, and give univerfal fatif- 

 faction. 



Among the different machines which 

 fhould be introduced into the colonics, we 

 may diftinguiih fteam-engiues. 



Steam-engines, fuch as are ftill ufed in 

 the greater part of mines, confift of a 

 boiler which may be heated by combuftible 

 fubHances of every kind* The fteam of the 



water. 



