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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.

To prepare or treat with collodion. R. Hunt.

oated with silver chloride in gelatin; now, any such process using silver salts in either collodion or gelatin; also, a print so made.

A picture obtained by the collodion process; a melanotype or ambrotype.

See Collodion.

d.), a preparation of astringent and antiseptic substances with some colloid material, as collodion, for ready use.

To slip, or to become slightly displaced; as, the collodion on a negative, or a coat of varnish, may creep in drying; the quicksilver on a mirror may creep.

and water united by a mucilaginous substance. (b) In photography, a liquid preparation of collodion holding salt of silver, used in the photographic process.

A photographic picture taken on an iron plate by a collodion process; -- familiarly called tintype.

nt jelly is made. J. Smith. -- Jelly powder, an explosive, composed of nitroglycerin and collodion cotton; -- so called from its resemblance to calf's-foot jelly.

A positive picture produced with sensitized collodion on a smooth surface of black varnish, coating a thin plate of iron; also, the process of making such a picture. [Written also melainotype.]

ilm of which retains its sensitiveness only while wet. The film used in such plates is of collodion impregnated with bromides and iodides. Before exposure the plate is immersed in a solution of silver nitrate, and immediately after exposure it is developed and fixed.