Show igl 11 the above cut shows an engineer taking vertical angles at or near 5 m wil W N the horizontal with PAT POCKET TRANSIT this is the most convenient accurate and reliable NO 0 PRECISION BALANCE pocket instrument made tor for 6 5 beam sensibility 1100 1 to 1500 1 milligramme Milli gramme preliminary surveys the taking of the most accurate BUTTON BALANCE ever placed upon the topography etc over in use market all contacts of agate metal work gold plated extension throughout the world used by the plate glass sub base perfect workmanship for U S geological survey for full full particulars send for catalogue A illustrating this and description of the instrument send other balances to for catalogue B to WM WIVI AINSWORTH SONS MAKERS 0 M N V M U S A THE MINE SrI SHELTER ELTER SUPPLY CO salt lake city utah agents CHAS BUTTERS CO limited f E S LEAVER manager chemical and metal lurg surgical ical laboratory DOOLY BLOCK SALT LAKE CITY UTAH WE CARRY IN STOCK 7 LATHES SHAPERS PLANERS DRILL PRESSES AND IRON WORKING MACHINERY OF ALL KINDS zw TOOLS SUPPLIES I 1 I 1 THE cupply TOOL CO DENVER COLORADO when writing to advertisers please mention the Mill mining ilig review |