[7] Showing the chromatic bands thrown upon the screen from a diffraction grating.
[8] Reproduced in abridged form from the Electrical Review and the cuts from La Lumiere Electrique.—Science.
[9] See Supplement No. 264 for an illustrated description.
[10] Annales Industrielles.
[11] A communication to the London and Provincial Photographic Association.
[12] Translated from the Revue Odontologique, for the Dental Cosmos.
[13] In the cuts, Nos. 6, 7, and 8 are proportionate modifications of No. 5.
[14] By Professor Henry Robinson. Paper read Oct. 2, 1884, at the Congress of the Institute held at Dublin.—Building News.
Transcriber's Note:
Inconsistent spelling and hyphenation are as in the original.