430 Miscellaneous Bibliography. 
It must have exploded over the country about midway between 
the Republican and Solomon rivers, which has few inhabitants. 
An aerolite must have fallen and I have spent some time in en- 
deavoring to find it, but thus far without success. 
State Agricultural College, Manhattan, Kansas. 
5. Corrigenda for Article XTV on Vision.—In the article on 
‘Vision by 8. Rowrery in our September number (p. 158), notice of 
two omissions in the statement of the proposition was forwarded — 
by the author, but reached us too late for insertion. The follow- 
ing are the corrections to be made: ' 
n 8th line from bottom of page 155 (counting the lines of the 
note), between the words behind and the, insert the words, the center 
0 
In 4th line from top of page 156, between the words plane and 
perpendicular, insert the words, passing through the middle of the 
interval between the eyes and the point of intersection of the optic 
anes, 
6. British Association.—The next meeting of the British Asso- 
ciation will be held at Exeter, under the presidency of Prof. G. 8. 
Stokes, Sec. R. 8. ‘ 
V. MISCELLANEOUS BIBLIOGRAPHY. 
1. Report of J. Ross Brown on the Mineral Resources of the 
States and Territories west of the Rocky Mountains. Washing- 
on: Government Printing Office, 1868. 8vo, pp. 674.—We find 
in Mr, Brown’s Report a large mass of important and interesting 
information which it is desirable should be accessible in a compact 
0 wish a resumé of the ee oe of 
re) 
development as well as of the general nature and exte the 
Vv neral regions of the U.S. west of the Rocky Mountains. 
5 is neither a mineralogist, geologist nor miner, We 
can fairly look in this document only for such information as a0 
amass upon almost any subject to which he brings zeal and inte 
ligence. We can readily overlook numerous slips in matters “on 
nical and scientific, in view of the substantial pegeep nr set 
Ww 
Brown has made to our literature upon this subject. The w 
ps in Mr. 
at these 
“oat party, but the volume on the mining regions labors 
ontana, Idaho, Utah, and Colorado, which embraces the ‘his 
of the mining engineer, Mr. James D, Hague, charged 
