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A nephoscope registering by photography, commonly consisting of a pair of cameras used simultaneously.

Of or pertaining to the photoscope or its uses.

Hence, liberty of acting; room for enlargement or display; scope; as, to give full play to mirth. Play actor, an actor of dramas. Prynne. -- Play debt, a gambling debt. Arbuthnot. -- Play pleasure, idle amusement. [Obs.] Bacon. -- A play upon words, the use of a word in such a way as to be capable of double meaning;…

m has very fine striations, and is a favorite object for testing the high powers of microscopes.

A priest's cope.

s with which the body of a podura is covered. They are used as test objects for the microscope.

Of or pertaining to the polariscope; obtained by the use of a polariscope; as, polariscopic observations.

The art or rocess of making observations with the polariscope.

That which polarizes; especially, the part of a polariscope which receives and polarizes the light. It is usually a reflecting plate, or a plate of some crystal, as tourmaline, or a doubly refracting crystal.

A polyscope, or multiplying glass.

Range. -- Position micrometer, a micrometer applied to the tube of an astronomical telescope for measuring angles of position in the field of view. -- Single position (Arith.), the method of solving problems, in which the result obtained by operating with an assumed number is to the true result as the number assumed…

The degree to which a lens, mirror, or any optical instrument, magnifies; in the telescope, and usually in the microscope, the number of times it multiplies, or augments, the apparent diameter of an object; sometimes, in microscopes, the number of times it multiplies the apparent surface.

the prime vertical. -- Prime-vertical transit instrument, a transit instrument the telescope of which revolves in the plane of the prime vertical, -- used for observing the transit of stars over this circle.

edge of the moon at the time of a solar eclipse. They may be discovered with the spectroscope on any clear day. Called also solar prominences. See Illust. in Append.

tain astronomical tables published in the sixteenth century, founded on the principles of Copernicus, a Prussian.

Of, pertaining to, or formed by, a pseudoscope; having its parts appearing with the relief reversed; as, a pseudoscopic image.

and stars revolving around it. This theory was received for ages, until superseded by the Copernican system.

A kind of ball-shaped fungus (Lycoperdon giganteum, and other species of the same genus) full of dustlike spores when ripe; -- called also bullfist, bullfice, puckfist, puff, and puffin.

Design or tendency; meaning; import; tenor. The whole scope and purport of that dialogue. Norris. With a look so piteous in purport As if he had been loosed out of hell. Shak.

The limit or scope of a statute; the whole extent of its intention or provisions. Marshall. Profanations within the purview of several statutes. Bacon.