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One skilled in siderography.

The art or practice of steel engraving; especially, the process, invented by Perkins, of multiplying facsimiles of an engraved steel plate by first rolling over it, when hardened, a soft steel cylinder, and then rolling the cylinder, when hardened, over a soft steel plate, which thus becomes a facsimile of the original…

See Seismograph.

See Sciagraph, Sciagraphy, etc.

A name for the one of the fancy sails alleged to have been sometimes set above the skysail. [Obs.]

A cerecloth. [Obs.]

An apparatus for photographing or mapping a spectrum.

provided with clockwork for moving the sun's image across the slit. -- Spec`tro*he`li*o*graph"ic (#), a.

One skilled in sphenography; a sphenographist.

Of or pertaining to sphenography.

A sphenographer.

The art of writing in cuneiform characters, or of deciphering inscriptions made in such characters.

An instrument for facilitating the practical use of spherics in navigation and astronomy, being constructed of two cardboards containing various circles, and turning upon each other in such a manner that any possible spherical triangle may be readily found, and the measures of the parts read off by inspection.…

An instrument which, when applied over an artery, indicates graphically the movements or character of the pulse. See Sphygmogram.

Relating to, or produced by, a sphygmograph; as, a sphygmographic tracing.

An instrument for recording the respiratory movements, as the sphygmograph does those of the pulse.

Splanchnology.

A description of the spleen.

palate, consisting in paring and bringing together the edges of the cleft. -- Staph`y*lo*raph"ic, Staph`y*lor*rhaph"ic, a.

A contrivance for recording the speed of a railway train. Knight.