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Knight's Mechanical Encyclopedia (ed. Knight) 10 0 Browse Search
George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 2, 17th edition. 2 0 Browse Search
The Daily Dispatch: August 19, 1861., [Electronic resource] 2 0 Browse Search
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to prevent their adherence during the process of baking. Stilts; triangles. Cock — up Let′ter. (Printing.) A large letter standing above its fellows in the line, and formerly used for the initial letter of a book or chapter. Co′coa. A palm (Cocos nicifera) from which the nut is derived. It also affords coir, from which ropes are made. The name of the kernel from which the beverages cacao, broma, and chocolate are prepared, is sometimes corruptly spelt cocoa. See cacao. Coddington lens. Cod′ding-ton lens. A lens of spherical form having a deep equatorial groove around it in the plane of a great circle perpendicular as to the axis of vision. The groove is of such a depth that the stem connecting the hemispheres has a diameter equal to 1/5 of the focal length of the lens. This lens was invented by Dr. Wollaston, and called by him the periscopic lens; he made it by cementing together by their plane faces two hemispherical lenses with an annular, opaque diap
and suffers no change thereby. They were formerly combinations of three lenses, as shown at l. They were made by Dollond in 1753. See achromatic lens. The Coddington lens is of spherical form, and has a deep equatorial groove around it filled with opaque matter, acting as a diaphragm to diminish the quantity of light and excf diminished images. The spherical lens is of a globular shape, and has usually an equatorial groove filled with an opaque object to exclude lateral rays. A Coddington lens. The Stanhope lens is of a cylindrical form, and has convex ends having different radii. It is, perhaps, impossible to determine when lenses were firntendence of Professor Newcomb. See the following varieties : — Achromatic lens.Meniscus. Aplanatic lens.Microscopic lens. Bull's-eye.Multiplying-lens. Coddington lens.Object-glass. Concavo-convex lens.Orthoscopic lens. Condensing-lens.Pebble. Convex lens.Periscopic lens. Convexo-concave lens.Photographic lens. Conve
ections, etc. Per′i-scop′ic lens. (Optics.) Dr. Wollaston's periscopic lens for microscopes had two plano-convex lenses ground to the same radius, and between their plane surfaces a thin plate of metal with a circular aperture. The aperture had a diameter equal to one fifth the focal length. It was proposed to fill up the central aperture with a cement of the same refractive power as the lens. Permutation-lock. Permutation-lock. Bank-lock. Another mode, proposed by Coddington, was to make a deep equatorial groove around a sphere of glass in the plane of a great circle perpendicular to the axis of vision; the groove to be filled with opaque matter. The periscopic lens for spectacles is concavoconvex, the ratio of the radii of the respective surfaces constituting it a magnifying or diminishing lens, as the case may require. The object is to give the lens a curved surface approximating that of the cornea, for the purpose of increasing the distinctness of obj<
ence as the highest court of Wheelwright. appeal, fled to the island gift of Miantonomoh; and the records of Rhode Island, like the beautiful career of Henry Vane, are the commentary on the true import of the creed. Faith in predestination alone divided the Antinomians from the Quakers. Both reverenced and obeyed the voice of conscience in its freedom. The near resemblance was perceived so soon as the fame of George Fox reached America; and the principal followers of Anne Hutchinson, Coddington, Mary Dyer, Henry Bull, and a majority of the people, avowed themselves to be Quakers. Thus had the principle of freedom of mind, first asserted for the common people, under a religious form, by Wickliffe, been pursued by a series of plebeian sects, till it at last reached a perfect development, coinciding with the highest attainment of European philosophy. By giving a welcome to every sect, America was Chap. XVIII.} safe against narrow bigotry. At the same time, the moral unity of
The steam saw mill and lumber yard of Coddington & Co., at Bound Brook. N. J., were destroyed by fire on the 12th instant.--Loss $36,000. A schooner lying in the dock and two or three dwelling-houses were also burned.