Edwin A. Pratt,
A History of Inland Transport and Communication in England…
(1912)
“ Among various other conditions of river navigation may be mentioned—the extremely serpentine courses of some of the rivers, two miles often having to be made for each mile of real advance; the ever-varying channels in some of the streams; the arduous labour of towing against strong currents, especially when, in the absence of towing-paths for horses, this work had to be done by men; and the destruction, by floods, of the river banks or of works constructed on them. ”
