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A chart or graphic representation of the average distribution of rain over the surface of the earth.

The first word of ancient charters in England, confirming a grant made by a former king; hence, a royal grant.

An imaginary line, or a line on a chart, marking the simultaneous development of a thunderstorm, as noted by observing the time when the thunder is heard at different places.

ing to, having the nature of, or making, isocheims; as, an isocheimal line; an isocheimal chart.

, having the nature of, or illustrating, an isocryme; as, an isocrymal line; an isocrymal chart.

ture of, or marking, isogeotherms; as, an isogeothermal line or surface; as isogeothermal chart. -- n.

l angles. Isogonic lines (Magnetism), lines traced on the surface of the globe, or upon a chart, connecting places at which the deviation of the magnetic needle from the meridian or true north is the same.

ere; indicating the distribution of temperature by means of an isothere; as, an isotheral chart or line.

seal (styled also lord privy seal), a high officer of state, through whose hands pass all charters, pardons, etc., before they come to the great seal. He is a privy councillor, and was formerly called clerk of the privy seal. [Eng.] - - Keeper of a magnet, a piece of iron which connects the two poles, for the purpose o…

The upper division of the European Triassic. See Chart of Geology.

eds of lignite, often valuable for coal, and is hence also called the lignitic group. See Chart of Geology.

An organic rule, as a constitution or charter, establishing and defining the conditions of the existence of a state or other organized community.

e congregation, etc., in the church service. Hook. -- Lay days (Com.), time allowed in a charter party for taking in and discharging cargo. McElrath. -- Lay elder. See 2d Elder, 3, note.

ven in England and Europe to a series of marine limestones underlying the Oölite. See the Chart of Geology.

r Silurian formations of Great Britain; -- so named from Llandeilo in Southern Wales. See Chart of Geology.

ing below the Old Red Sandstone; -- so named from the Ludlow, in Western England. See the Chart of Geology.

zed by the formations known as the Oneida conglomerate, and the Medina sandstone. See the Chart of Geology.

tor up to 70 or 80 degrees; tabulated numbers representing these parts used in projecting charts, and in solving cases in Mercator's sailing.

ng, to the secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Chart of Geology.

The Miocene period. See Chart of Geology.