Manual 1874 American
Engineer's & Surveyor's Instruments
& L. E. Gurley
published by W. & L.E. Gurley, one of America’s leading producers
of mathematical and scientific instruments, have been used by generations
of engineers and surveyors.
In this manual
Gurley describes all of its various instruments: how they are calibrated,
used and maintained, and includes a catalog of its complete instrument
line. This 1874 edition is especially valuable since it is one of
the earliest and is rarely found. With an introduction by David C.