The Grand Junction is now the longest independent Canal under one management. This Company recently purchased the Grand Union and the Leicester and Northamptonshire Union Canals, thus increasing its length by 43 miles.
The Lee Navigation connects Hertford with the Thames, and is used for barge traffic. Experiments in electric traction are being made on this waterway.
The London and Hampshire is one of the few Canals which act as Carriers—in fact its revenue is almost entirely derived from carrying Freights.
The Regent's is only a short Canal of 1012 miles length, and runs from East to West of London.
The Thames Navigation has a connection with the Severn by two routes but part of each route is owned by the Gt. Western Railway Co.
III.—Humber Group.Humber group is composed entirely of barge Canals. The chief being:—
| Aire and Calder Canal | 93 | miles. |
| Don Navigation | 60 | „ |
| Ouse„ | 60 | „ |
| Trent„ | 68 | „ |
| Less important Canals | 207 | „ |
| Total | 488 | miles. |
