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an apparent image of an external object or objects to appear as if projected upon a plane surface, as of paper or canvas, so that the outlines may conveniently traced. It is generally used with the microscope.

bjects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the oulines may be traced.

lls are inclined inward at the top, following the slope of the rafters, to meet the plane surface of the upper ceiling. -- Camp chair, a light chair that can be folded up compactly for easy transportation; the seat and back are often made of strips or pieces of carpet. -- Camp fever, typhus fever. -- Camp follower,…

Having the surface coveres with raised lines, crossing at right angles.

A cotton stuff showing a fine cord on one side and a satiny surface on the other.

A piece of strong cloth of which the surface has been prepared to receive painting, commonly painting in oil. History . . . does not bring out clearly upon the canvas the details which were familiar. J. H. Newman.

The peculiar action by which the surface of a liquid, where it is in contact with a solid (as in a capillary tube), is elevated or depressed; capillary attraction.

A plane used for working the upper surface of staircase rails.

t through a light petroleum oil. The carburetor for a gasoline engine is usually either a surface carburetor, or a float, float-feed, or spray, carburetor. In the former air is charged by being passed over the surface of gasoline. In the latter a fine spray of gasoline is drawn from an atomizing nozzle by a current of…

compact pasteboard of various qualities, for making cards, etc., often having a polished surface.

To subject to a process which converts the surface of iron into steel.

Having the surface hardened, as iron tools.

The act or process of converting the surface of iron into steel. Ure.

A kind of dress goods, made with a soft and glossy surface like cashmere.

A light transitory air which ruffles the surface of the water during a calm, or the ripples made by such a puff of air.

Any violent catastrophe, involving sudden and extensive changes of the earth's surface.

r more logs or pieces of wood lashed together, and moved by paddles or sail; -- used as a surf boat and for other purposes on the coasts of the East and West Indies and South America. Modified forms are much used in the lumber regions of North America, and at life-saving stations.

A violent and widely extended change in the surface of the earth, as, an elevation or subsidence of some part of it, effected by internal causes. Whewell.

A dich or drain along the side of a hill to catch the surface water; also, a ditch at the side of a canal to catch the surplus water.

A surface of ground on which water may be caught and collected into a reservoir.