Observations on the very important and contrary effects which carriage wheels, with rims of cylindrical, and of conical shape have on the roads, and on the labour of cattle : with estimates of the national advantages that may reasonably be expected from the adoption of the cylindrical shape of carriage wheels /
Cumming, Alexander.
London :  printed by J. & E. Hodson, sold by Faulders, 
1809.
A microfilm of the British Library copy.
Wheels.
Carriages and carts.
Roads