P-ISSN 0002-9599
E-ISSN 1945-452X
Vol. s3-40, Issue 236, 1890August 01, 1890 EDT
Cheapest Form of Light, From Studies at the Allegheny Observatory
Cheapest Form of Light, From Studies at the Allegheny Observatory
S. P. Langley, F. W. Very,
Langley, S. P., & Very, F. W. (1890). Cheapest form of light, from studies at the Allegheny Observatory. American Journal of Science, s3-40(236), 97–113. https://doi.org/10.2475/ajs.s3-40.236.97