Of placing the Carriage. 245 may. be-ſcen.by-.the. figure, For-faps poſe i k.to- repreſent ſuch a declining road. Then, if a perpendicular to the horizon is raiſed to. the centre of the high wheel, it will cut the carriage at e g, whereas‘a perpendicular paſling through the centre of the low wheels will cut it at. fh. From this it 1s evi- dent, that the higher that any carriage is raiſed above the centre of the whecls, the greater weight will, in ſuch a cafe, be thrown on the back of the horſe, And, in going down, the horſe will have too much weight, and, in going up, too little.

The higher any carriage is thus raiſed, and the more any road declines, the greater’ will be the inconveniency, ari- fing from the additional weight which

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