Editorial Comment. .57'.' 
Fresno, Nevada county (Grass .Valley), Calaveras, Amador, 
Los Angeles: country rock from these mines. 
Antimony, Fine ores of this metal including stibnites from 
San Benito county: antimony regulus, etc.; copper ores 
from Plumas. Fresno. Mariposa. Nevada. Inyo, del Norte and 
( alaveras counties. 
Tin. Blocks of stanniferous ore from the Temescal mines. 
Riverside county. 
Manganite. Tuolumne county, Santa" Clara. 
Iron. Magnetite from Plumas county, (fine cubes with 
truncated edges, chromic): a set from Alameda. San Mateo 
county: magnetite. Lassen, El Dorado, and San Bernardino 
counties; hematite. San Luis Obispo: quartz crystals, min- 
erals, rocks, building stones, asphalt and oils, and onyx. 
The collection, though small for the importance of the 
state which it represents, is well labeled and intelligently ar- 
ranged. As in many other cases, many of the exhibits which 
properly belong here, have been placed in the California 
building and in the Manufactures and Liberal Arts building 
for the purpose of mere display and advertisement. On tin- 
whole, what there is of the collection is very satisfactory. 
( !olorado. 
The great silver (and gold) State which ought to be 
in the van of the exhibitors has not a representation <»!' 
her ores worthy of her. except, perhaps, in products of the 
furnace, which are not in all cases, or at least are not stated 
to be, from her own ores. Some private tirnis and public in- 
stitutions exhibit. Among the exhibits are minerals and ores 
from Gunnison, minerals (including ores) of Colorado, 
"minerals," "silver ores,'* minerals from (anon City, minerals 
and ores from Ouray, gold ores from (anon City, minerals 
from (rested Butte, gold ores from Leadville. minerals and 
ores from Silverton, and silver blossoms from Denver. Be- 
sides these there were products from fourteen smelting works 
labeled "Smelting and new processes." While some of the in- 
dividual specimens are interesting, there is no attempt to 
supply a systematic exhibit from the state. 
Connecticut and Florida 
Do not properly find place in a list of States exhibiting the 
precious and useful metals. 
