This 1900 catalog was the first ever published by this important Boston-based maker of surveying instruments and other precision tools. If you wish to be able to tell a solar compass from a theodolite and a wye level from a transit, the detailed descriptions are extremely helpful. And if you’ve ever yearned to be able to match the instrument oriented folks technical term for technical term, a study of the drawings will get you on the right path. Includes an introduction and historical commentary by Dave Garcelon.