Note 29b — A LETTER, &c.

“A locomotive engine of ten-horses power will draw 120 tons at the rate a draught-house generally travels; or 50 tons at the rate of six miles an hour. I may here remark that the rate of travelling may be increased to surpass that of mail coaches; and that the locomotive engine will as readily convey 25 tons (including its own weight) at the rate of twelve miles an hour, as double the weight in twice the time.”—Mr. Jessop’s Second Report to the Committee of the Proposed Railway from Cromford to the Peak Forest Canal, at Whaley Bridge. Dated 29th November, 1824.