The following is -he lottor from Mr Jatnes Grave, referred to in yesterday's report of the meeting of the Municipal Council : — Oamaru, 16th August, 187 T. His Worship the Mayor, and Councillors, Gentlemen, — Although, for the time being, I have ceased to take an aotivo part in the management of Municipal matters, I still have a lively interest in the progress and welfare of our town, and viewing as I do the Waterworks Scheme as being closely connected with its prosperity, or otherwise, I have deemed it not out of place to submit to you the report of Mr G. Thureau, furnished to the Sandhurst Sohool or Mines, which I think contains informa tion of the most modern system of con structing iron pipes for woter supply, and which, if found to be correct, and borne out by fact, will tend greatly to reduoe the coat of your eohemo, and possibly effect a Having of at least LlO,OOO to the town, besides doing a large amount of good by having the greater portion of the money spent amongst us, in the manu facture of the pipes, the chief cost of which is the labor on bending and rivet ting the sheet iron. Mr Thureau says:— " Hithorto all conduit pipes outsido our cities, and at the inverted syphon near Taradale, have been made from oast iron, in 0 feet lengths, the metal being nearly 2 inches thick, I believe, and conse quently large amounts of money have been spent to obtain such pipes outside the Colony. Now I don't recollect the exact height of pressure in all these Victorian cases, but assume a pressure of 375 ft. is a rery good test for such cast iron pipes. Now the hydraulio miner on these slopes avoids, as much as possible, cast-iron in any shape or form, except for valve seats, Ac. The pipes, bends, and

NEW MODE OF MAKING WATER P I P E S.
