340 | Scientific Intelligence. 
legitimate; and that really the argument of the whole paragraph 
from which the quotation is made is intended to show such a neg- 
ative. The word “conspicuous” in that paragraph is a misprint 
for calciferous, as noted in the errata. 
Minneapolis, March 4, 1885. 
7. Grand Atlas of the Second Geological Survey of Pennsyl- 
pared and published the most extensive of all geological and 
mineral State reports. 
. Map of the Dominion of Canada geologically colored 
JSrom surveys made by the geological corps, 1842 to 1882. Geo- 
logical and Natural History Survey of Canada, A, R. C. SELWY%, 
irector. is fine map measures six feet across, and 18 4 
valuable contribution to American geological science. The survey 
has accomplished a great work in gathering the materials for S° 
detailed a map. 
9. New Minerals from Colorado: ZonyitF, GUITERMANITE. 
Dr. W. F. Hrttesranp has recently described two new miner 8 
from the Zufii mine on Anyil Mountain, near Silverton, 5an Juan 
Co., Colorado. Zunyite occurs in very minute tetrahedral crys 
tals showing the faces of both the plus and minus tetrahedrons, 
parallel to which there is easy cleavage, and frequently also those 
of the cube and perhaps the dodecahedron. The crys rf 
transparent, except for foirguet black inclusions of titanic OX! “ss 
and have a glassy luster; the hardness is 7 and the vat 
gravity of the pure mineral 2°875. The mean of a punites 
partial analyses made upon material selected with all poss! 
care is 
