a paper descriptive of the principles of construction and operation of the heliochromoscope, a new optical instrument of his invention for the reproduction of natural colors in photography. The speaker at the close of the meeting exhibited a photograph of a bouquet of natural flowers in the apparatu
Proceedings of the stated meeting, held wednesday, October 19, 1887
โ Scribed by Wm.H. Wahl
- Publisher
- Elsevier Science
- Year
- 1887
- Tongue
- English
- Weight
- 119 KB
- Volume
- 124
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Present, fifty-five members and six visitors. Seven persons were reported to have been elected to membership since the previous meeting, M. Eax~cs'; PoxTza~, Civil Engineer, of Paris, France, was, or~ th~ recommendation of the Board of Managers, elected a Correspondin I Member. The Secretary present
bc filtered withc,ut ;\ny solid matter separating. When sulphuric acid is ;<ddcd, the iodide 0f st;irch is thrown down and may be easily separated by filt~~ntiOi1, and washed with \vatcr. The analysis of the substance dried in v;Lcuun~ g:~vc rS.47 per cent. iodine.