Vol. s2-45, Issue 133, 1868January 01, 1868 EDT
On a New Binocular Eye-Piece for High Powers
On a New Binocular Eye-Piece for High Powers
H. L. Smith,
Smith, H. L. (1868). On a new binocular eye-piece for high powers. American Journal of Science, s2-45(133), 42–47. https://doi.org/10.2475/ajs.s2-45.133.42