Show I 1 W q A ill 11 lj maj the above cut shows an engineer 1 gill taking vertical angles at or near 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 bythe 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 tor for catalogue D B to WM WIVI AINSWORTH SONS MAKERS DENVER COLORADO U 0 ATHE MINE SrI smelter ELTER SUPPLY CO salt lake city utah agents THE HUG WATER WHEEL has a guaranteed efficiency OF 86 PER CENT as ahm in catalogue by test curves from cornell university most economical wheel on the market no loose buckets possible manufactured BY U D 9 HUG I 1 SEND FOR CATALOGUE DENVER COLORADO U S A f CHAS BUTTERS CO Limi limited f E S LEAVER manager chemical and me metals ON lurg surgical ical laboratory 1441 DOOLY BLOCK SALT LAKE CITY UTAH WW when writing to advertisers please mention the mining alining review |