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To stand in doubt whether to proceed, or what to do; to h How long halt ye between two opinions 1 Kings xviii. 21

errupter in which contact is broken by the movement of an automatically vibrating hammer between a contact piece and an electromagnet, or of a rapidly moving piece mechanically driven.

A game played with such a ball, as by players striking it to and fro between them with the hands, or alternately against a wall, until one side or the other fails to return the ball.

to injure; to damage; to wrong. Though yet he never harmed me. Shak. No ground of enmity between us known Why he should mean me ill or seek to harm. Milton.

roportions, points, lines. motions, and the like. Harmonic interval (Mus.), the distance between two notes of a chord, or two consonant notes. -- Harmonical mean (Arith. & Alg.), certain relations of numbers and quantities, which bear an analogy to musical consonances. -- Harmonic motion, the motion of the point A, o…

of things, or in things, or things intended to form a connected whole; such an agreement between the different parts of a design or composition as to produce unity of effect; as, the harmony of the universe.

with an audible sound by forcing an expiratory current of air through the narrow passage between the depressed soft palate and the root of the tongue, thus aiding in the removal of foreign substances.

In framing, the piece of timber fitted between two trimmers, and supported by them, and carrying the ends of the tailpieces.

wo or more boards, etc., at right angles to the grain of the wood. (b) (Masonry) A joint between two roussoirs in the same course.

A thicket of bushes, usually thorn bushes; especially, such a thicket planted as a fence between any two portions of land; and also any sort of shrubbery, as evergreens, planted in a line or as a fence; particularly, such a thicket planted round a field to fence it, or in rows to separate the parts of a garden. The rou…

A narrow strait between Europe and Asia, now called the Daradanelles. It connects the Ægean Sea and the sea of Marmora.

A forge hammer which is lifted by a cam acting on the helve between the fulcrum and the head.

Having the raphe terminating about half way between the chalaza and the orifice; amphitropous; -- said of an ovule. Gray.

sian fly (Zoöl.), a small dipterous fly or midge (Cecidomyia destructor). Its larvæ live between the base of the lower leaves and the stalk of wheat, and are very destructive to young wheat; -- so called from the erroneous idea that it was brought into America by the Hessian troops, during the Revolution.…

The absence of correspondence, or relation, in type of structure; lack of analogy between parts, owing to their being composed of different elements, or of like elements in different proportions; variation in structure from the normal form; -- opposed to homology.

me species; -- applied especially to insects in which there is a wide difference of form between the larva and the adult, and to plants having more than one form of flower.

A series of six notes, with a semitone between the third and fourth, the other intervals being whole tones.

That which hinders; an impediment. What various hindrances we meet. Cowper. Something between a hindrance and a help. Wordsworth.

A hybrid between a stallion and an ass.

bone. -- Hip girdle (Anat.), the pelvic girdle. -- Hip joint (Anat.), the articulation between the thigh bone and hip bone. -- Hip knob (Arch.), a finial, ball, or other ornament at the intersection of the hip rafters and the ridge. -- Hip molding (Arch.), a molding on the hip of a roof, covering the hip joint of t…