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A photographic picture of the size formerly in use for a visiting card.

process depending upon chemical action; specif., a process of zinc etching not employing photography. -- Chem`i*graph"ic (#), a.

treat or prepare with a chloride, as a plate with chloride of silver, for the purposes of photography. R. Hunt.

stance saturated with chlorophyll pigments. Under light of varying intensity they exhibit phototactic movements. In animals chloroplasts occur only in certain low forms.

A colored photographic picture taken upon paper made sensitive with potassium bichromate or some other salt of chromium.

the retina, held in solution by fats, and slowly decolorized by light; distinct from the photochemical pigments of the rods of the retina.

composed principally of incandescent hydrogen gas, surrounding the sun and enveloping the photosphere. Portions of the chromosphere are here and there thrown up into enormous tongues of flame.

A photographic picture in the natural colors.

A photographic picture taken upon paper prepared by the use of a sensitive salt of iron and developed by the application of chloride of gold. Abney.

A camera for taking chronophotographs for exhibition by the instrument described above.

One who exhibits moving pictures or who takes chronophotographs by the cinematograph. -- Cin`e*mat`o*graph"ic (#), a. -- Cin`e*mat`o*graph"ic*al*ly (#), adv.

ontaining 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.…

A photomechanical print made directly from a hardened film of gelatin or other colloid; also, the process of making such prints. According to one method, the film is sensitized with potassium dichromate and exposed to light under a reversed negative. After the dichromate has been washed out, the film is soaked in glyce…

e divided exactly by a number exceeding unity, as 6 by 2 or 3.prime number. -- Composite photograph or portrait, one made by a combination, or blending, of several distinct photographs. F. Galton. -- Composite sailing (Naut.), a combination of parallel and great circle sailing. -- Composite ship, one with a wooden c…

A photographic picture obtained by the use of a cyanide.

An early variety of photograph, produced on a silver plate, or copper plate covered with silver, and rendered sensitive by the action of iodine, or iodine and bromine, on which, after exposure in the camera, the latent image is developed by the vapor of mercury.

A reagent by the action of which the latent image upon a photographic plate, after exposure in the camera, or otherwise, is developed and visible.

unfolding process by which anything is developed, as a plan or method, or an image upon a photographic plate; gradual advancement or growth through a series of progressive changes; also, the result of developing, or a developed state. A new development of imagination, taste, and poetry. Channing.

A colored photograph produced by superimposing a translucent colored positive over a strong uncolored one.

-- Dry pipe (Steam Engine), a pipe which conducts dry steam from a boiler. -- Dry plate (Photog.), a glass plate having a dry coating sensitive to light, upon which photographic negatives or pictures can be made, without moistening. -- Dry-plate process, the process of photographing with dry plates. -- Dry point. (F…