98 *^ft. iiORJ^ALOWER ON HORSE POWERJ. 



clafs of horfcs with a weight defcending through a given fpace or a quantity 

 employed. ^p water falling a given height, and therefore is better ex- 



pretTed by the terms effe6l, refiftance, re-a6lion, &c. and 

 even then, to be any thing like precife, we ought to difcrimi- 

 nate whether brewers* horfes, or higlers' horfes, waggon horfes 

 or coach horfes, heavy horfes or light, and if you will go into 

 the country among the coal-mines, you will have another clafi 

 of thefe animals, which I know not what to call unlefs it bv? 

 poor horfes, full worked and half ftarved; in fliort, I mean 

 that neither one or the other ought to be taken into the account 

 as the meafure of a mechanic power. 

 Mr. More*s Neverthelefs it feems defirable to have fome popular ex- 



eilimate of 8olb. preflion for the application of whatever may be fubftituted in 

 TWs'is nearr*^' *^® place of horfes, whether (learn, water or wind; nor can 

 three fourths ofthere be any obje6tion to faying, *' equal to the work of fo 

 Defagulier's many horfes," provided we can attain to a clear, unequivocal 

 and fomewhat exa6l value, attributable to that power, and if 

 I may give my own opinion, I think Mr. More has Hated the 

 utmofl effefl to be 80 lb. three miles per hour, in fuch horfes as 

 are proper for giving motion to mill-work, and at fuch fpcHs as 

 will not exhauft the breath or ftrength of the animal. 

 Remarks. ^ ^^ furprifed to find this mode of calculation has obtained 



fo far as to determine the power engines employed purely as 

 pumping engines, as lately at the Tunnel, the New Docks* 

 &c. but I am glad it reaches no further than the bills of mor- 

 tality, and I hear that the Dutch method of hoifling goods to ' 

 warehoufes has lately been adopted at fome of our new docks. 

 O tempora, O mores ! While other countries are availing them- 

 felves of the application of the fleam engine in place of ani- 

 mal labour, we are taking up the expedients of thofe who have 

 fcarce heard there is any fuch thing as a fteam engine, or who 

 cannot appreciate its value on that degree of evidence we have 

 in our own country. 

 Whether the ^^ "^^7 ^^ obje6led to by fome to alter the prefent data, 



horfe power or however erroneous, as we fliall be obliged to require 20 horfe 

 unity be true or '^^^ inftead of 10 (for it appears the eflimate is nearlv, if 

 not, It ought » ^ . • /, 1 1 I X 1 " 1 



furely to be free not quite cent, per cent, more than it Uiould be) ; but even that 



from ambiguity. ^^^ make no difference in any refpefl than as making a rent 



in an egregious error; the coft of an engine cannot be altered 



by it, nor the cor.fumption of fuel, but a material convenience 



would be the refull of fuch a regulation, confidering the ad^ 



*3 vantage 



