348 The American Geologist. May, 1894 
Of all these microscopes those made by Fuess seemed on the 
whole to be most satisfactory, both as regards convenience, 
variety of appliance, workmanship and price. 
//. M Ineralog ical Collections. 
Among the wealth of mineral exhibits, most of which were 
naturally concentrated in the Mining building, it is of course 
possible here to specify in the briefest manner only the most 
noteworthy. On the other hand, the great systematic collec- 
tions of minerals exhibited by English and Ward were so 
prominent and so attractive that no one at all interested in 
the subject of mineralogy could fail to have examined them. 
Hence they require no especial mention here, while no space 
at the disposal of this brief resume could do justice to their 
ample treasures. 
Among objects of especial scientific interest should be men- 
tioned the collection of the rare calcite crystals from Rossie, 
N. Y., shown by the State Museum ; the quartz crystals from 
Middleville, N. Y., shown by Mr. Crim ; the galena, sphalerite 
and large calcite crystals in the Missouri pavilion ; the topaz 
crystals from Japan ; the crystallized gold from Brecken- 
bridge, Colorado; silver crystals from Montana; azurite from 
Arizona; great yellow calcites from Wyoming ; gold, diamond 
and emerald crystals from New South Wales; and argentite, 
calcite and fire opal from Mexico. 
In a small mineral collection exhibited by Mr. Kidd of 
Kingston, Ontario, were two very remarkable crystals of black 
scapolite found at Eagle lake. They are of large size, per- 
fectly terminated at both ends, and show both pyramid and 
prism of the third order in complete development. 
More or less complete systematic collections of the minerals 
found within their borders were made by New York, Maine, 
Massachusetts, New Jersey, North Carolina, and various west- 
ern states; by the New York Mineralogical Club, of the min- 
erals of New York island; and by Mexico, Japan, Canada, 
and New South Wales. 
The most remarkable collection of precious and semi-pre- 
cious stones, both mounted, unmounted and in the rough, 
was exhibited by Tiffany & Co., of New York, partly in 
their main pavilion in the Manufactures building, and 
