Abstract
LONDON.
Mathematical Society, March 10.—'Prof. Greenhill, F.R.S., President, in the chair.—The President and Mr. S. Roberts, F.R.S., spoke upon the loss the Society had sustained by the recent decease of Dr. Hirst, F.R.S., touching more especially upon the great services he had rendered to it in the early days of its existence.—The following paper was read:—The simplest equivalent of a given optical path, and the observations required to determine it, by Dr. J. Larmor. To specify an optical path through a heterogeneous medium like the atmosphere, or through an arrangement of refracting substances like an optical instrument, we require the geometrical curve followed by the filament of light, and also the character of the modification produced on a filament following this path across the medium.
Article PDF
Rights and permissions
About this article
Cite this article
Societies and Academies. Nature 45, 502–504 (1892). https://doi.org/10.1038/045502a0
Issue Date:
DOI: https://doi.org/10.1038/045502a0