...temperature of any place gives the warmth of the. ground 3O feet below the surface. Connect, by a line, all those places on the surface of the. globe which have the same mean temperature, and you have. what is called an isothermal line. If the thermal relations, depended solely on the operations...

...land, and the prevailing winds, it is found that the isothermal lines, or imaginary lines drawn through places on the surface of the globe which have the same mean annual temperature, do not correspond with the parallels of latitude. Thus in North America the climate...

...may be observed, that they are curves so drawn upon a geographical map as to connect together all the places on the surface of the globe which have the same mean annual temperature; and this mean is deduced from a comparison of observations made during a series...

...Iso-tkermal lines are lines of equal temperature; a term applied to imaginary lines drawn on a map connecting all those places on the surface of the...Lines drawn through places having the same summer temperature, are termed Isotheral; those drawn through places having the same winter temperature, are...

...bo-thermal lines are lines of equal temperature ; a term applied to imaginary lines drawn on a map connecting all those places on the surface of the...Lines drawn through places having the same summer temperature, are termed Isot/teral; those drawn through places having the same winter temperature,...

...heat). —Having the same temperature; of equal temperature. In Physical Geography, isothermal lines are lines connecting all those places on the surface of the globe which have the same mean temperature; and as temperature is governed by relative distribution of land and water, by altitude and other conditions,...

...IsoTHEHAL(Gr. isos, and iheros, summer). — Having the same summer temperature ; isotheral lines, lines connecting all those places on the surface of the globe which have the same mean summer temperature. ISOTHERMAL (Gr. isos, and therme, heat). — Having the same temperature ; of equal...

...Isotberal (Gr. isos, and tJieros, summer). — Having the same summer temperature ; Isotheral lines, lines connecting all those places on the surface of the globe which have the same mean summer temperature. Isothermal (Gr. isos, and therme, heat). — Having the same temperature ; of equal...

...temperature. ISOTHKRAL (Gr. isos, and theros, summer).—Having the same summer temperature ; isotheral lines, lines connecting all those places on the surface of the globe which have the same mean summer temperature. ISOTHERMAL (Gr. isos, and therme, heat). —Having the same temperature; of equal...