He had not the modern surveyor's instruments, boats or other helps.
"Alaska Days with John Muir" by Samual Hall Young
One of the men carried a surveyor's instrument, while a second bore a chain.
"With Ethan Allen at Ticonderoga" by W. Bert Foster
A loft contained a number of instruments for boring, a surveyor's chain, ropes, and other matters.
"The Glaciers of the Alps" by John Tyndall