（Bookbinding.) Cutting into the printed matter of a book when cutting the edges.
（Mining.) Otherwise known as black- jack. A native sulphuret of zinc, which is treated by roasting, and destructive distillation in combination with charcoal in a vessel from which the air is excluded.
By access of air the metal burns and passes off as the white oxide, which is collected and forms a pigment known as zinc-white.
A kind of marble taken from the quarries of Genoa and elsewhere.
It is of a deep blue upon a white ground, mixed with gray spots and large veins.
For apparatus to assist the blind in writing, printing, or reading, see embossing-type for the blind; printing for the blind; Writingframe.
Grenville's invention (English) for teaching the blind was in 1785.
1. (Carpentry.) A sun-screen or shade for a window.
Outside blinds are known as Spanish, Florentine, Venetian, or shutter.
Inside blinds are known as Venetian, dwa<
spended from a chain passing around an axis upon which the hourhand was fixed and counterbalanced.
As the water rose, the vessel ascended, turning the hand on its axis and indicating the hour on a dial.
Clepsydras are said to have been found in use among the Britons by Julius Caesar, 55 B. C.
The Saracens had several kinds of clepsydras; one with a balance.
A clock was presented by Pope Paul I. to Pepin, King of France, A. D. 760; was possibly a clepsydra.
Pacificus, Archdeacon of Genoa, invented one in the ninth century.
Lately, the clepsydra has been adapted by Captain Kater, for the accurate measurement of short intervals of time, by the flowing of mercury from a small orifice in the bottom of a vessel, kept constantly filled to a certain hight.
The stream is intercepted at the moment of noting any event, and diverted aside into a receiver, into which it continues to run till the moment of noting another event, when the intercepting cause is suddenly removed and the
ra-borealis forms the only trace of the North American continent, and might answer for Newfoundland.
Cuba and parts of the South American continent are plotted as islands of the eastern coast of Asia, adjacent to Java major, Java minor, and Zipango, which more immediately fringed the Asiatic coast.
Cuba, the Antilia of Columbus, and yet the Queen of the Antilles, lies north and south, parallel with the coveted island of Zipango (Japan), which so persistently eluded the search of the man of Genoa, who tried to push his caravel through a continent.
Sea-charts were brought to England, 1489, by Bartholomew Columbus, to illustrate his brother's views respecting a western continent.
The first tolerably accurate map of England was made by George Lilly, who died 1559.
Gerard Mercator published his Atlas in 1556.
In this, as in the modern maps on the Mercator projection, the meridians and parallels are straight lines and cut each other at right angles.
The distance between the
reat North American desert are also either entirely or comparatively rainless.
Local causes frequently determine the amount of rain which may fall in a short time at a given spot.
This not unfrequently amounts to a large fraction of the annual precipitation.
At London, on the 27th of November, 1845, 6 1/2 inches, more than 1/4 of the total annual amount, fell within 24 hours.
At Joyense, in the department of the Ardeche, France, 31.173 inches have been known to fall in 22 hours; at Genoa, 30 inches in 24 hours: and at Gibraltar, 33 inches in 26 hours, — the latter equaling the total yearly fall in England and in the Northern United States.
At San Diego, California, but 5 inches fall in the course of the year.
Grass Valley, in the same State, has an annual fall of 60 inches.
The tropics, as being the great source for supplying the atmosphere with aqueous vapor by evaporation, naturally constitute the great area of precipitation, though, owing to other causes modifying
loops which project from the backing, and are thus left by withdrawing the wire for an uncut or pile velvet; but are cut by a knife to make a cut velvet.
Mentioned in Joinville and in the will of Richard II.
Called, anciently, vellet.
There bought velvett for a coat and camelott for a cloak for myself. — Pepys's Diary, 1666.
（Fabric.) A cut-piled fabric of cotton.
It differs from velvet only in respect of the material.
When it has a twilled back it is called Genoa.
A pile-fabric loom.
Wall-paper printed with glue and dusted with shearings of cloth or flock.
It was invented by Lanyer, who obtained an English patent in 1634.
He employed shearings of wool, silk, and other materials upon backings of paper, cloth, silk, cotton, and leather.
A carpet made in the same manner as Brussels carpet, except that the wire, over which the loops of the worsted yarn ar