Vol. s4-1, Issue 1, 1896January 01, 1896 EDT
Very Simple and Accurate Cathetometer
Very Simple and Accurate Cathetometer
F. L. O. Wadsworth,
Wadsworth, F. L. O. (1896). Very Simple and Accurate Cathetometer. American Journal of Science, s4-1(1), 41–48. https://doi.org/10.2475/ajs.s4-1.1.41