APPENDIX. 
After having brought to a close the foregoing analyses, to be embodied 
in the present Report, I found time to examine a few more of the speci- 
mens collected during our first field-excursion. The results could not be 
reported in their proper places without re-arranging and in part re-writing 
the contents of the foregoing pages; I, therefore, give them a place in 
this appendix. 
No. 53. Pearlspar, forming veins in the dolomite (No. 32) of the Hoppe 
ore-bank. 
Crystallized, crystals partly interwoven, the characteristic curved sur- 
faces eminently developed; color white to pale flesh-color; covered on sur- 
face with a thin layer of peroxide of iron. Powder, pale reddish-white. 
Composition, dried at 220 deg. F: 
Silicates, insoluble in hydrochloric acid-.++++++++- 0.219 
Sesquioxide of iron- + s++ee eres es seer ee ae cerns 1.168 
Carbonate of lime---+---+- Soe 55.052 
Carbonate of magnesia +++ ++ sree e settee cere ees 43.560 
99.999 
No. 54. Massive smithsonite, from Cury creek diggings, township 15, 
range 5, sections 35 and 36, Independence county. 
The ore consists chiefly of a dirty yellowish-gray and bluish-gray cellu- 
lar mass, the cells mostly of cubical shape as if formed by the destruction 
of crystals of galena; they are partly filled with dark-gray smithsonite, 
forming botryoidal incrustations on the walls of the cells, partly with an 
