On the Geology of the Northwestern Regions of America. 331 
71° (on the east side of Greenland), and in that of Melville 
Island, in latitude 75° north, Professor Jameson found plants re- 
sembling those of the coal-measures of Britain; and similar 
remains have been reported from the coal-fields of Oregon and 
Vancouver’s Island. These facts are sufficient of themselves, as 
is remarked by Sir John Richardson, to raise a world of conjec- 
Coasts of Arctic America, are patches of pleistocene deposits, 
With marine shells of existing Arctic species (Mya truncata, 
prthe largest being about 10 inches in diameter. The wood is pot very hard, ie 
friable, Yass Pe Task and a slight gloss. When laid on the fire, it does _ burn 
with a flame, but glimmers. emits a resinous odor.’”—Narrative of an 1 > we 
tion to the Polar Sea, by Admiral F. von Wrangell, of the Russian Imperial Navy, 
23. (Edited mg of the spontaneous combus- 
lignite deposits at Bear Lake and other 
“lr, and ha eens oe ee hundred years e ills 
pe in fi : as un y = ae , 
i the N. Puaibatectiness ae ie vai general line with the lignite extending 
ane the Rocky Mountains, 
an . 
* The coal ‘Cowlitz, Orecon, is Tertiary, and the plants from Puget’s 
— Gina ie ee oe Tertiary. See also a note by Mr. Gibbs, in 
Journal, (2], xx, 298,—Eps. 
