410 Scientific Intelligence. 
State of Indiana. oe: os the oo of Statistics and Geology, 1880, 
by Joun Coutetr. 544 pp. 8vo, with plate 
Geological raga os Canada “Report of ‘th Geology of Southern ist Bruns- 
bier vrei 8-79, f. L. W. Bar } R. W. Ets. 261 
pp. 8vo, with a linge pectogheal ay and 6 plates of sections. Montreal, 1880. 
bt Brothers.) 
11. Lazulite from Canada.—tThe occurrence of lazulite in the 
District of Keewatin, near the mouth of the Churchill River, is 
described by C, Hoffmann (Geology of Canada, Report of Pro- 
gress for 1878-9). e ee occurs ean” in narrow veins in 
quartz. It has a deep azure blue color specific gravity is 
3°0445. An analysis afforded the fo ollowing ‘posite (after the de- 
duction of 3°81 p. ¢. silica, as impurity): 
P05 Al,Os FeO MgO CaO H.O 
46°39 Pad 14 vod nin 13°84 2°83 6-47=100°76 
Carolina. 122 pp. 8vo. Raleig 
es J, i -2, . 
13. pti Be of Building ‘Stones.—Dr. Hiram A. Corrine 
of Vermont, has made examinations as to the de of heat suf 
ficient to cause the destruction io different building stones and 
has extended his experiments to 22 kinds of granite, 23 of sand- 
stone, 7 of limestone, 7 of mar oe 4 of con lomerate, 1 of slate, 
1 of soapstone, and 1 of artificial stone. nder the application 
of the heat, the granite (1) began to yield at a temperature be- 
ears 700° a nd 800° F.; (2) became cracked between oe 'F. and 
900° F.; (3) became ee cracked between 800 and 950° F. 
