...J GREEN 185 XVI.-Description ofthe PeqmdicularL@ for passing Boatsfrom one Level of Canal to another, as erected on the Graad Western CanaZ. By JAMEGSREEN, M.1nst.C.E. ITmay be right, in the first instance, to observe, that these lifts have not been designed to supersede the use of locks on canals...

...J FIELD © Thomas Telford and ICE 1836 CANALS LOCKS WATER RAISING LEVELS MODELS 61 Ill. Impmed Canal Lock, by JOSHUFAIELDEs,q., T.R.S.,V.P.Imt.C.E. THEnumerous and extensive navigable canals by which this kingdom is intersected, have tended in a great degree to exhaust everynatural...