110 ^'HE WATER ttAHtf, 



Bndcostot200. properly SO called cost 2400 livres [£I00], and the other 

 parts necessary to the machine about as niucli. Thus for 

 ^200 a quantity of water fully sufficient for all the demands 

 of a large family, for cattle, and for watering a gaTden, is raised 

 to the height of 108 feet. 

 Costs little to To keep the machine in order cannot cost much ; for all 

 keep in order, that is required is the renewal of a few leathers, or pieces of 



trifling value, and in cleaning it after floods or frosts. 

 Tried in vaii- I believe I have given sufficient proofs of the utility of the 

 o s p aces. vvatcr ram ; and the facts I announce may be verified at 

 several places, where they have been fixed both in France and 

 abroad. Individuals therefore may now judge of the advan- 

 tages they may derive from the machine, 

 iv" H''>'r ^^' ^ ^^^'^ spoken only of one kind of water ram ; but it is easy 

 other purposes, to conceive that thp principles in which a machine so different 

 from any hitherto known constructed, are capable of 

 inuch more extensive application, For instance, water dif- 

 ferent from that which runs in the ram may be raised by it ; 

 that is to say, by means of a fall of water, we may draw water 



^ralsjngwa- Q^t of the bottom of a well or of a mine, as with any other 

 ter from mines . , ^ , . ,. . - , . ,, , 



or wells. engine; and from the simpncity of the ram it would have a 



great advantage over others generally employed for this pur- 

 pose. But 1 shall not turn my attention to other applications 

 of the principles of the water ram, till I have derived all the 

 advantage possible from the application I wish to make of it 

 to falls and streams of water. 



r^cmarh. W. N. 

 The water ram The engine described in the preceeding memoir as invented 

 ^mi'vearsio ^^ ^^- Mongolfier was the subject of much attention about 

 by Mongolfier, nine years ago, and a patent was then taken out for it in this 

 kingdom. That part of the contrivance which is due to this in- 

 genious experimental philosopher (so well known by his inven- 

 tions in aerostatics), consists in his causing the operation of 

 raising water by its momentum, fust acquired by falling 

 through a pipe, to be performed without attendance. 

 — and executed Aji engine of this kind, not acting spontaneously, was execu- 

 miich^eVrlier ^^^ thirty-four wars ago at Oulton in Cheshire, the seat of 

 at tt.e Mat of Philip EgcrtoH, Esq., and is described by Whitdiurst in fhe 

 l^^^^^"' , Philo- 



