Hermon, Royal Wilkinson Rednersville Hewson, Thomas Ringwood.... Hamilton Holland, Wm. Hugh. Howitt, Alfred.. 1892 16th October, 1897 12th December, 1903. July, 1900. 24th April, 1894.. 1892 13th January, 1899. 21st September, 1898. 23rd December, 1892.. 17th January, 1897. 6th October, 1866.. 1892 31st March, 1906. 22nd December, 1899. - June, 1904. 10th July, 1905. 19th February, 1908. 8th January, 1905. Chas. Potter OPTICIAN 85 Yonge Street, TORONTO Transits, Levels Established 1853 and all Surveying Instruments kept in stock-all of the best quality and sold with the guarantee of this long-established house. Mathematical Instruments for Architects and Draughtsmen-and other supplies in Paper, Rules, Squares, etc., etc.-the utmost pains taken to meet the exact requirements of the profession in these matters. Repair Department Surveying and Mathematical Instruments repaired by careful and experienced workmen on the premises. Import Orders for any special instruments and goods undertaken on terms extremely favorable to customers. Catalogues and Price Lists of leading makers kept on file. Spectacles, Eye Glasses, Lenses, Optical Goods, in large variety and highest quality. Chas. Potter OPTICIAN 85 YONGE STREET, TORONTO Progressive Engineers READ ENGINEERING NEWS For Authoritative, Up-to-date Over 1600 pages concerning Engineering development and practice throughout the world, amply illustrated with photographs and drawings. Subscription Price $7.00 a year Public Work advertised in ENGINEERING NEWS receives wider publicity than by any other method, as the majority of engineers, contractors and supply firms in the United States and Canada see no other Engineering journal. Competition is thus encouraged and the total cost of the work in hand reduced to a mini mum. The "WANT" ads. in ENGINEERING NEWS are invaluable to employers and employees alike. Situations Open advertisements: 3 cents a word. SAMPLE COPY FREE UPON REQUEST The Engineering News Publishing Co., 220 BROADWAY, NEW YORK. Bausch & Lomb TRANSITS AND LEVELS Are made under the personal supervision of George N. Saegmuller, formerly sole proprietor of Fauth & Co., Washington, D. C., and now a member of the Bausch & Lomb Optical Co. The distinctive features of these instruments are the Large aperture and perfection of the optical parts. Precise graduations. Accurate levels graduated on the vial. Extra long centers, insuring accuracy. These valuable features are characteristic of our nstruments alone. BAUSC & LOMB EISS JEMA Descriptive catalog free upon request. OPTICAL CO EN SAEGMUL Our Name on a Photographic Lens, Microscope, Field Bausch & Lomb Optical @. WASHINGTON CHICAGO SAN FRANCISCO LONDON ROCHESTER, NY. FRANKFORT NEW YORK |