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The tendency of plant organs to grow in a straight line when uninfluenced by external stimuli.

nsitized pigmented gelatin by exposure to light under a negative; and subsequent washing out of the soluble parts; a kind of picture in ink from a gelatin plate.

A process resembling "nature printing," by which drawings executed on gelatin are impressed into a soft metal plate, from which the printing is done as from copperplate.

The art or process of making autotypes.

often called "the fall." Astronomically, it begins in the northern temperate zone at the autumnal equinox, about September 23, and ends at the winter solstice, about December 23; but in popular language, autumn, in America, comprises September, October, and November.

Of, belonging to, or peculiar to, autumn; as, an autumnal tint; produced or gathered in autumn; as, autumnal fruits; flowering in autumn; as, an autumnal plant. Thick as autumnal leaves that strow the brooks In Vallombrosa. Milton.

A lemon-yellow phosphate of uranium and calcium occurring in tabular crystals with basal cleavage, and in micalike scales. H., 2- 2.5. Sp. gr., 3.05-3.19.

See Advoutrer. [Obs.]

Adultery. [Obs.] Chaucer.

The quadrant of an azimuth circle.

Of or pertaining to the azimuth; in a horizontal circle. Azimuthal error of a transit instrument, its deviation in azimuth from the plane of the meridian.

, (Bot.) A plant with flowers shaped like buttons; especially, several species of Ranunculus, and the cornflower (Centaures cyanus) and globe amaranth (Gomphrena).

To stammer. [Obs.]

The defect of stammering; also, a kind of incomplete pronunciation.

A solution used as a vehicle in applying bronze pigments. In addition to acetote, benzine, and a little pyroxylin, it contains amyl acetate, which gives it the odor of bananas.

A voracious pikelike, marine fish, of the genus Sphyræna, sometimes used as food.

The act of closing the doors of a schoolroom against a schoolmaster; -- a boyish mode of rebellion in schools. Swift.

Prolonged at the base, as certain leaves.

A warlike South African people of the Bantu stock, divided into many tribes, subject to the English. They formerly practiced cannibalism, but have now adopted many European customs.

The measuring of time by beating.