. 
52 Fluor Spar, §¢. in Ohio.. 
As to the manner in which the work of Professor Cleave- 
land is executed, the remarks which we have already made, have 
in a good degree anticipated this head. 3 
We cannot, however, dismiss the subject, without adding, — 
that, in our opinion, this work does honour to our country, 
and will greatly promote the knowedge of mineralogy and 
geology, besides aiding in the great work of disseminating a 
taste for science generally. Our views of the plan we have | 
already detailed. The manper of execution is masterly. Dis- 
crimination, perspicuity, judicious selection of characters and 
facts, and a style chaste, manly, and comprehensive, are among 
the attributes of Professor Cleaveland’s performance. It has — 
brought within the reach of the American student the excel- — 
lencies of Kirwan, Jameson, Haitiy, Brochant, Brongniart, anc 
- Werner ; and we are not ashamed to have this work compared — 
with those of these celebrated authors. In our opinion, Profes- 
sor Cleaveland’s work ought to be introduced into all our 
schools of mineralogy, and to be the travelling companion 0 
every American mineralogist. 
We trust that all cultivators of mineralogy and geology in 
this country, will willingly aid Professor Cleaveland in oni 
ging his list of American localities for a second edition ; 
we hope that he will repay them, at a future day, by givin 
us a distinct treatise on geology, with as particular a delinea- 
tion as possible of the geological relations of the great North 
American formations. Mr. Maclure has, with great ability, 
sketched the outline ; but much labor is still needed: in filling: 
up the detail. 
Arr. III. New Locality of Fluor Spar, or Fluat of Lime : 
and of Galena, or Sulphuret of Lead. 
Me JOSEPH BALDWIN, formerly of Connecticut, now 
residing near Shawnee Town, in the Illinois Territory, has 
given us some interesting specimens of fluor spar. They af 
found not far from Shawnee Town, on the banks of the Ohio: 
