( J6)
An Estimate of the Advantages that will accrueto the Publicity by means of Cancelling the' Fri&ion of the Wheels Pulley , Balance ,Pendidum , &c.
A S I have no other design but to makethis Calculation considerably within va-lue, £b will I only compute the saving inWheel Carriage, (by means of diminishingthe Friction) only in drawing up Hill (withoutthe additional help by the Wind Tackle)which is about two for one; that is, oneHorse will draw as much as two in the com-mon way : And then suppose the labour os aHorse to be valued at one shilling and sixpence per day, and that forty thousand areemployed in this Kingdom in Wheel Carri-age, there will consequently be a gain inthe whole of 1,095,000 pounds per annum yor 3000 pounds per day. But as one Horsenow will do the labour of two, I will sup-pose that there will be occasion to employonly twenty thousand, and consequently thetxpence of twenty thousand Horses, allowing