As the mineral thenardite or mirabilite, which crystallizes in the rhombic system, it occurs in many parts of the world, as in Spain, the western states of North America and the Russian Caucasus; in the last-named region, about 25 m.
In North America the fruits of an allied species, C. americana, are eaten both raw and cooked.
Owing to this unsymmetric development of North America the main structural watershed is towards its western side, on the south coinciding with the Rocky Mountains proper, but to the northward falling back to ranges situated further west in the same mountain region.
In North Carolina five of the seven life-zones into which North America has been divided are represented, but more of its area belongs to the upper-austral than to any other zone.
The geological processes that placed a much narrower ocean between North America and western Europe than between North America and eastern Asia secured to the New World the good fortune of being colonized by the leading peoples of the occidental Old World, instead of by the less developed races of the Orient.
C. Marsh, Odontornithes: A monograph of the Extinct Toothed Birds of North America (New Haven, Conn., 1880); R.
In 1865 he opposed the federation of the British American provinces, and, in his anger at the refusal of the British government to repeal such portions of the British North America Act as referred to Nova Scotia, made a speech which won for him the name of Haul-down-the-flag Jones.
Besides the above, in the Trias of North America we have Dromotherium and Microconodon, extremely primitive forms, representing the family From Owen.
It is represented in the south-west of North America by other forms that by some writers are deemed species, and in the northern parts of South America by the C. phoeniceus, which would really seem entitled to distinction.
Virginiana, of North America is employed instead for pencils and cigar-boxes.