The Science of Photography

1901

As to the cause of the deterioration of gelatin and dry photographic plates W. G. Levison suggests that there is some emanation, probably Becquerel rays, from the pasteboard of the boxes in which the plates are packed for the market, which causes their deterioration. He found that if he cut a star from the pasteboard of a plate box and laid it on the sensitive side of a plate, the whole then being inclosed in a box for a week, when he developed the plate he obtained an image of the star.

An Adapter.

M. Guenault has devised an "adapter," which transforms the ordinary folding pocket kodak into a camera suitable for plates, as distinguished from pellicules. Full particulars can be had of the inventor, 22 Rue de Strasbourg, Nantes. It can, report says, be applied to the popular pocket kodak very easily, and renders it still more serviceable.

Secret of Color Photography.

The Bund, a leading Swiss paper, has a long article on the discovery of the secret of color photography by a Bern amateur, Adolphe Gartner. He has been working on the invention for several years, but by a happy accident a few days ago he discovered the secret, which consists chiefly in the bath process and is very simple.

Color-Film Lotion Is Found

1919

Russian Invents Emulsion Designed to Improve Photography.

LONDON, England. — A secret emulsion, invented by a Russian, which, it is asserted, will make color photography possible for everybody, is about to be introduced into this country. The problem of making the process capable of snapshot as well as time work is claimed to have been overcome and the exposure can be as rapid as with the ordinary emulsion, thus fitting the invention for moving picture work also.

Special cameras and plates will be on the market shortly and the cost of a colored film is expected to he only 15 to 20 per cent higher than the ordinary black and white type.

—The Saturday Blade, Chicago, Jan. 3, 1920, p. 9.

Beginning of World War To Be Observed

1922

"No More War" Meeting Will Be Held Saturday In Music Hall

The anniversary of the beginning of the World War will be celebrated by the University of Wisconsin in connection with the world-wide demonstrations on the day, by a "No More War" meeting Saturday at 8:00 p.m. in Music hall.

The program will be opened with the showing of a one-reel film of the Educational corporation entitled "What's the Limit?" This 15 minute feature is an imaginative film of cartoon type, illustrating the havoc of war. The film was shown a few weeks ago before several members of the Woman's club by Prof. H. M. Dudley of the Extension division with pleasing results.

Justice M. B. Rosenberry of the Wisconsin Supreme court, who will act as presiding officer, will present the theme of the evening. Miss Zona Gale will deliver a short address. Miss Gale is a member of the Wisconsin Peace society.

Prof. Carl Russell Fish, the other speaker of the evening, will speak upon the "Possibility of Peace."

"This meeting," says Dean Goodnight, "should be interesting and timely, coming as it does upon the heels of Will Irwin's talk upon the late war."

—The Capital Times, Madison, Wisconsin, July 27, 1922, page 8.