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Collodion   Listen
noun
Collodion  n.  (Chem.) A solution of pyroxylin (soluble gun cotton) in ether containing a varying proportion of alcohol. It is strongly adhesive, and is used by surgeons as a coating for wounds; but its chief application is as a vehicle for the sensitive film in photography.
Collodion process (Photog.), a process in which a film of sensitized collodion is used in preparing the plate for taking a picture.
Styptic collodion, collodion containing an astringent, as tannin.






Collaborative International Dictionary of English 0.48








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"Collodion" Quotes from Famous Books



... Fizeau took a daguerreotype photograph of the sun. In 1850 Bond produced one of the moon of great beauty, Draper having made some attempts at an even earlier date. But astronomical photography really owes its beginning to De la Rue, who used the collodion process for the moon in 1853, and constructed the Kew photoheliograph in 1857, from which date these instruments have been multiplied, and have given us an accurate record of the sun's surface. Gelatine dry plates were first used by ...
— History of Astronomy • George Forbes

... Kennedy took his knife and lifted the ashy flakes of the top order. "Get me some collodion, somebody!" he exclaimed. ...
— The Film Mystery • Arthur B. Reeve

... result is a black and white negative. That is, the lines that were black in the drawing are absolutely clear and transparent in the negative, but the rest of the negative is black. From the photographer, the negative goes to the "negative-turning" room. Here the negative is coated with solutions of collodion and rubber cement, which makes the film exceedingly tough—so tough that it is easily stripped from the glass on which it was made, and is "turned" with the positive side up on another sheet of glass. If this ...
— The Building of a Book • Various

... in the wax-paper process (having heretofore worked the collodion and calotype, from its very desirable property of keeping long good after being excited, i. e. the wax paper), I am very desirous of getting over an unexpected difficulty in its manipulation; and ...
— Notes and Queries, Number 234, April 22, 1854 • Various

... Number 3. of the Quarterly Journal of Microscopical Science (Highley, Fleet Street) they will find three papers containing more or less information on the subject of their Query; and a plate, exhibiting two positive photographs from collodion negatives, in the same number, will give a good idea of what they may expect to attain in this ...
— Notes and Queries, Number 188, June 4, 1853 • Various

... all rez-de-chaussee, without windows, and lighted only from above. About the room hung an indescribable odor of collodion and ether, as if it had once been used by a photographer. The garden was shut in by high walls covered with ivy which dripped with moisture. The dormitory stood against a superb hotel; and on one side was a stable, always noisy ...
— Jack - 1877 • Alphonse Daudet



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