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ime, and at nearly equal distances from the zenith, but on opposite sides of it. It turns both on a vertical and a horizontal axis, is provided with a graduated vertical semicircle, and a level for setting it to a given zenith distance, and with a micrometer for measuring the difference of the zenith distances of the t…

The oxide of zirconium, obtained as a white powder, and possessing both acid and basic properties. On account of its infusibility, and brilliant luminosity when incandescent, it is used as an ingredient of sticks for the Drummomd light.

shallow sounding-board, which lies horizontally on a table before the performer, who uses both hands in playing on it.

rners of the upper garment worn by strict Jews. The Hebrew for this word is translated in both the Authorized and Revised Versions (Deut. xxii. 12) by the word "fringes."

tructure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct.

A division of marine gastropods in which the gills are developed on both sides of the body and the renal organs are also paired. The abalone (Haliotis) and the keyhole limpet (Fissurella) are examples.