The first iron railway sanctioned by parliament in 15 miles per hour;* in 1834, the Fire-Fly attained a speed of 20 miles per hour ; in 1839, the North 1801 (with the exception of a few undertaken by Star moved with a velocity of 37 miles per hour ; canal companies as small branches to mines) was and at the present moment locomotives have at- the Surrey iron railway (by horses), from the tained a speed of 70 miles per hour.
Stephenson, travelled at the rate of 6 miles per The first considerable iron railway was laid down at hour ; in 1829, the Rocket travelled at the rate of Colebrook Dale in 1786.  The first iron railway sanctioned by parliament in 15 miles per hour;* in 1834, the Fire-Fly attained a speed of 20 miles per hour ; in 1839, the North 1801 (with the exception of a few undertaken by Star moved with a velocity of 37 miles per hour ; canal companies as small branches to mines) was and at the present moment locomotives have at- the Surrey iron railway (by horses), from the tained a speed of 70 miles per hour.  During- the Thames at Wandsworth to Croydon.