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A laminated, granular, siliceous rocks, often occurring in regions where the diamond is found.

tch, sycosis. -- Bricklayer's itch, an eczema of the hands attended with much itching, occurring among bricklayers. -- Grocer's itch, an itching eruption, being a variety of eczema, produced by the sugar mite (Tyrogluphus sacchari). -- Itch insect (Zoöl.), a small parasitic mite (Sarcoptes scabei) which burrows and…

A preserve of fruit boiled with sugar and water; as, raspberry jam; currant jam; grape jam. Jam nut. See Check nut, under Check. -- Jam weld (Forging), a butt weld. See under Butt.

An ocher-yellow mineral occurring on minute rhombohedral crystals. It is a hydrous sulphate of iron and potash.

The juice of fruits or meats boiled with sugar to an elastic consistence; as, currant jelly; calf's-foot jelly. Jelly bag, a bag through which the material for jelly is strained. -- Jelly mold, a mold for forming jelly in ornamental shapes. -- Jelly plant (Bot.), Australian name of an edible seaweed (Eucheuma specios…

A structure of wood or stone extended into the sea to influence the current or tide, or to protect a harbor; a mole; as, the Eads system of jetties at the mouth of the Mississippi River. Jetty ad (Naut.), a projecting part at the end of a wharf; the front of a wharf whose side forms one of the cheeks of a dock.…

posed of members of the two houses of a legislative body, for the appointment of which concurrent resolutions of the two houses are necessary. Cushing. -- Joint meeting, or Joint session, the meeting or session of two distinct bodies as one; as, a joint meeting of committees representing different corporations; a join…

(ergs), and is practically equivalent to the energy expended in one second by an electric current of one ampere in a resistance of one ohm. One joule is approximately equal to 0.738 foot pounds. Joule's equivalent. See under Equivalent, n.

oduced in any part of an electric circuit is measured by the product of the square of the current into the resistance of that part of the circuit. If the current

That which has occurred in a day; a day's work or travel; a day's journey. [Obs. & R.] B. Jonson.

The periodical collection and publication of current news; the business of managing, editing, or writing for, journals or newspapers; as, political journalism. Journalism is now truly an estate of the realm. Ed. Rev.

spirits; delight. Her heavenly form beheld, all wished her joy. Dryden. Glides the smooth current of domestic joy. Johnson. Who, for the joy that was set before him, endured the cross, despising the shame. Heb. xii. 2. Tears of true joy for his return. Shak. Joy is a delight of the mind, from the consideration of the p…

A point of time; esp., one made critical or important by a concurrence of circumstances; hence, a crisis; an exigency. "Extraordinary junctures." Addison. In such a juncture, what can the most plausible and refined philosophy offer Berkeley.

A compound salt consisting chiefly of potassium chloride and magnesium sulphate, occurring at the Stassfurt salt mines in Prussian Saxony.

A fibrous mineral occurring in tufts of a straw-yellow color. It is a hydrous silicate of alumina and manganese.

ris). See under Bean. -- Kidney ore (Min.), a variety of hematite or iron sesquioxide, occurring in compact kidney-shaped masses. -- Kidney stone. (Min.) See Nephrite, and Jade. -- Kidney vetch (Bot.), a leguminous herb of Europe and Asia (Anthyllis vulneraria), with cloverlike heads of red or yellow flowers, once u…

An inert gaseous element of the argon group, occurring in air to the extent of about one volume in a million. It was discovered by Ramsay and Travers in 1898. Liquefying point, -- 152º C.; symbol, Kr; atomic weight, 83.0.

See Japan Current, above.

A mineral consisting of sulphate of lead, occurring either massive or in long slender prisms, of a greenish white or gray color.

a, and Helix. -- Land spout, a descent of cloud and water in a conical form during the occurrence of a tornado and heavy rainfall on land. -- Land steward, a person who acts for another in the management of land, collection of rents, etc. -- Land tortoise, Land turtle (Zoöl.), any tortoise that habitually lives on d…