TIDAL NAVIGATIONS, for, by nature, in the subsequent lowering of the outfall. The outward progress of the floods, or of the drainage, may be safely intrusted t,o the impulsion of the natural head of water coming fiom the inland district. MTith an enlarged view of the subject, it cannot be considered, that the navigations of the Ouse, the Nene, the Welland and the TVitham are adequa.te, in their present state, to the vast extent of land for the drainage of which they constitute the respec,tive

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... tlets. I t is, however, a subject of national importance, and well worthy the consideration of the Legislature, whether, an efficient system should not be immediately adopted, which should have the effect of concentrating the useful effect of the backwater upon one, or two capacious and deep channels, alike beneficial to the navigation and to the drainage. Mr. R. STEPHENSON, M.P., V.P., said the Paper recapitulated, as general principles, a series of accepted truisms ; but some of the conclusions, deduced from the reasonings, were not quite in accordance with his experience. It was somewhat difficult to col-