Trowbridge, John, 1843-1923, author. Contributions from the Physical Laboratory of Harvard University 1887 / by John Trowbridge, C. C. Hutchins, and E. L. Holden.

Trowbridge, John, 1843-1923, author.

Contributions from the Physical Laboratory of Harvard University 1887 / by John Trowbridge, C. C. Hutchins, and E. L. Holden.

Spectrum, solar.

Oxygen.

Carbon.

Platinum.

Hutchins, Charles Clifford.

Holden, E. L.

Proceedings of the American Academy of Arts and Sciences.