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A stumbling-block. This stumbling-stone we hope to take away. T. Burnet.

Situated under the peritoneal membrane.

The sensible or leading note, or sharp seventh, of any key; subtonic.

Aventurine feldspar. See under Aventurine.

See Stinkstone.

See the Note under Tone.

A silver coin of Portugal, worth about sixpence sterling, or about eleven cents. Homans.

A thunderbolt, -- formerly believed to be a stone. Fear no more the lightning flash, Nor the all-dreaded thunderstone. Shak.

A kind of laminated shale or sandstone belonging to some of the layers of the Upper Silurian.

Cassiterite.

shire, England; -- said by some to be derived from the German todter stein, meaning dead stone, that is, stone which contains no ores.

A stone erected over a grave, to preserve the memory of the deceased.

A stone that is placed on the top, or which forms the top.

Lydian stone; basanite; -- so called because used to test the purity of gold and silver by the streak which is left upon the stone when it is rubbed by the metal. See Basanite.

A variety of anhydrite composed of contorted plates fancied to resemble pieces of tripe.

A superfluous or augmented fourth. [R.]

The peptone formed by pancreatic digestion; -- so called because it is formed through the agency of the ferment trypsin.

species (Strepsilas interpres). They are so called from their habit of turning up small stones in search of mollusks and other aquatic animals. Called also brant bird, sand runner, sea quail, sea lark, sparkback, and skirlcrake. Black turnstone, the California turnstone (Arenaria melanocephala). The adult in summer is…

A low or subdued tone or utterance; a tone less loud than usual.

The nonmetalliferous mineral or rock material which accompanies the ores in a vein, as quartz, calcite, barite, fluor spar, etc.; -- called also veinstuff.