e most curious structure among the iso- transit, theodolite or architect's Y level, all of which lated buildings which comprise the station at Trappes he has obtained, it is not too much to hope that, before are of the utmost utility for mechanical operations. is the rotating house in which… … A SIMPLE HYDROSTATIC LEVEL. ment is accompanied by a checking appa- from the top as desired, the gage being ratus, with the records of which the in- kept at the edge of the brick or stone wall dications of the first instrument must agree. templet, from which the required level is to be meas- kite…
Gas · Cubic · Automobile · Feet · Naval · Pipe · Water gas · Color · Rapid transit · Producer gas · Cubic feet · Heating capacity · Scientific American · Cubic foot · Plain water · Horse power · City hall
Internet Archive · Public domain (published before 1931). Free to use for anything.
