On raising a loaded Cart luhen the Horse has fallen, 1 1 7 



Reference to the Drawins, of Mr. MoziWs Filtering Appa- 

 ratus~¥\g. 1. PI. IV. 

 AA is the cistern containing the water to be filtered ; the 

 fiherinii-slone B is suspencttd in the cistern by a ring around 

 the inside of it, whicli catches the projecting part of the 

 stone; the water in the cistern fihers through into the stone. 

 D is a syphon which conveys the fihered water from the 

 inside of the stone into a cistern E, which is the reservoir 

 for clean water, c? a cock to draw it off as it is wanted. 

 By this mode of fihration the impurities of the water are 

 deposited in the bottom of the cistern A, instead of being 

 left in the bottom of the stone as in the usual mode. 



XXVI T. Method of raising a loaded Cart tvhen the Horse 

 in the Shafts has fallen. Btj Mr. Benjamin Smith*. 



Sir, 1 HAVE taken the liberty of sending you a model with 

 a brief explanation of the utility of niv invention, in order 

 that it may be laid before the Society instituted for the En- 

 couragement of Arts, &c. to whose comprehensive judge- 

 ment and abilities I with great deference submit it for their 

 determination, whether thev think it likely to be attended 

 with the success and ulihty which I flatter myself it de- 

 serves. From the simplicity of the construction and the 

 trivial expense attending it, I presume there will be no bar 

 to its universal adoption. 1 respectfully submit it to the 

 discernment and decision of the Societv, who will, I am 

 convinced, give it all the merit and approbation it may de- 

 serve! 



The reason which prompted me to undertake this business 

 is, the having seen a horse which had fallen down under 

 the immense weight of a heavy loaded cart, where it lay for 

 a considerable time in that painful and daucerous situation, 

 which naturally excited compassion even in the most ob- 

 durate heart. Every person frequenting the streets of this 

 metropolis must have witnessed similar scenes; and indeed 

 it surprises me that long before now some expedients have 

 not lieen publicly suggested to remove the mischief arising 

 irom such occurrences, considerinsj the great encouraoement 

 that is given in this euliglUcned age to all useful improve- 

 nignts. 



• From Transaction* of the Society fur the Rncnnmsement of Arts, Mawifnc- 

 lures, and Commerce, for 18,0. — 'The- Spciety voted fifteen guineas lo Mr. 

 Benjamiu Smith lor this communication. 



kl 3 Having 



