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Geology and Natural History. 159 
the Orkney Islands, has since appeared in the ny J — 
for 1880 (pp. 648- 66 3). In the former it was he 
striated surfaces and other evidence, that the region of the ’ Shet- 
land Isles had been glaciated by Scandinavian ice; and in the 
latter also the agency of the Scandinavian ice-movement is recog- 
nized; and the course of movement in both regions was mostly 
between W.N.W. and N.N.W. But while the Scandinavian glacier- 
mass was concerned in the great movement over both regions, in 
the case of the Orkneys, which are near Northern Scotland, the 
ice glaciating them came mainly, if not wholly, from Northeastern 
Scotland. This is apparent from the fragments of Scottish rocks, 
so 
moving northwestward, in the direction of least resistance. The 
authors state that there is no evidence of marine drift deposits on 
the islands; and the absence of marine shells from the bowlder- 
clay is thought to “ probably indicate that a portion of the present 
sea-floor round Shetland formed dry land during the climax of 
alacial cold.” The facts are stated to confirm the views advo- 
eated by Dr. Croll more than ten years since. Two maps illus- 
trate the recent article, one showing the striations of the Orkneys, 
and the other, the “probable path of the ice,” from Scandinavia 
and Scotland over the islands named, and beyond to the margin of 
the saben trough of the ocean 
Queensland Geology. Repo ort on the Geology and Mineral 
Selvattes of the district beet Charters Towers Goldfields and 
the Coast ; by R. L. Jack, F.G.8., Geological Surveyor Northern 
Queensland. Brisbane, s 9. 
19. Mineral discoveries in Alewander Co ounty, North Carolina. 
—Mr. W. E. Hippen, who has been engaged for some time past 
colorless crystals. The crystals are well terminated and often 
highly modified, resembling those from Siberia; they are gener- 
ally implanted in cavities. A few fine crystals of a light chrome- 
green have been found loose in the soil on the Warren plantation. 
SpopumeNe is found on the Warren and Lyon plantations in 
small transparent crystals of a beat a color, associated 
with rutile, beryl, orthoclase an pyrit a narrow vein. This 
variety of ’spodumene has been caliea: Hiddenite by Dr. Smith 
(see p. nals eames is found in brilliant se often genicu- 
ent and of a beautiful deep red ¢ The best from 
Milholland’s mill and ohnson’s. Mosueai in anal islendent 
crystals occurs with rutile at Milholland’s mill, QwvuARTz occurs 
