Scientific American Volume 85 Number 10 (September 1901) . ARTESIAN Wells, Oil and Gas Wells drilledby contra ct to an y depth from 50to 3000 feet. We also manufac-ture and furnish everything re-I quired to drill and completeI same. Portable Horse PowerI and Mounted Steam DrillingMachines for 100 to 1200 us stating exactly whatis required and send for illus-| trated catalogue. AddressPIERCE WELL ENGINEERING AND SUPPLY CO. 136 Liberty Street. New , U. S. INDUCTION vUl L<»5 for experi-ments in X rays andother electrical ^ Catalogue S. RITCHIE & SONS, Bbooklin
Scientific American Volume 85 Number 10 (September 1901) . ARTESIAN Wells, Oil and Gas Wells drilledby contra ct to an y depth from 50to 3000 feet. We also manufac-ture and furnish everything re-I quired to drill and completeI same. Portable Horse PowerI and Mounted Steam DrillingMachines for 100 to 1200 us stating exactly whatis required and send for illus-| trated catalogue. AddressPIERCE WELL ENGINEERING AND SUPPLY CO. 136 Liberty Street. New , U. S. INDUCTION vUl L<»5 for experi-ments in X rays andother electrical ^ Catalogue S. RITCHIE & SONS, Bbookline. Mass. SYNCHRONOGRAPH.—A NEW METH- od of rapidly transmitting intelligence by the alternat-(112 current. A full description or the interesting ap-paratus of Crehore and Squier. 13 illustrations. Scien-tific American Supplements 1114- and 10 cents each. For sale by Munn & Co. and allnewsdealers. Send for new catalogue. WMd
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