Though not so large as formerly, these timber rafts are still sometimes 400 or 500 ft.
From Jalalabad downwards the river is navigable by boats or rafts of inflated skins, and is considerably used for purposes of commerce.
A town was founded in 1833, the Pennsylvania Canal (no longer in use here) was completed to this point in 1834, and the name of the place was suggested by two canal locks and the harbour, or haven, for rafts in the river.
It is at the head of the navigation of the Tigris, which is traversed down stream by keleks or rafts supported by inflated skins.
The foreign boulders of granite, gneiss, &c., found in the coalmeasures of some districts, are quite as likely to have been dropped by rafts of vegetation as to have been carried by floating icebergs.