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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Zodiacal Light and Counter-Glow and the Photography of Large Areas and Faint Contrasts

Douglass, A.E. January 1916 (has links)
Read before the Royal Photographic Society of Great Britain on December 14th, 1915.

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