. 
CONTENTS. ¥ 
NuMBER 2. 
‘Art. I. Notice of the Spoonbill Sturgeon, or Paddle Fish, of the Ohio, 
olyodon feuille of Lacepede, 201 
IL. Note of Fossil Trees near Gallipolis, Ohio. By Dr. 5. P. Hil- 
fil. Observations on the climate and productions of Washington 
unty, Ohio. By Dr. S. P. Hildreth, 
AV: ieteacs of Metearolasica! Observations, nee at Marietta, 
Ohio, in the ager th ae S. P. Hildre 213 
V. Fluids in the &s es of minerals. 
the ex iene ce sari wo new ie ids in the cavities of minerals, 
which are immiscible, and possess pete we physical proper- 
lies. y David Brewster, 
VI. ond on the mineralogy of Nova Scotia, By Francis Alger, of 
Vil. Renae on Bate Eaton’s prappeed improvement in the manu- 
facture 0” Com ass Needles ; by a Surveyor, 
VIII. Notice of Fri es’ Sys ystema Mycologicum. By E. Davis, Princi- 
pal of Westfield Academy, 
IX. Notice of the lead mines and veins ef Hampshire county, Mass 
of the Geology aad Mineralogy of that region. By A. Nash, 238 
X. Taxidermia—the art o pari d preserving specimens of the - 
ng n 
1al kingdom, for cabinets of Natural History, in a simple 
and effectual manner. Translated from the German of J. F. 
anm 
XI. A method of detecting minute quantities of Opium, in solution. 
y Robert eee M.D 
XIl. Method of preparing denarcotised Laudanum. By Robert 
Hare, M. D. &e. 291 
XIII. General Views = the formation of Phosphur étted Hydrogen. By 
Lewis C. Beck, M. D. Prof. of “Che emistry, "te 
294 
XIV. Appendix to Carkograthn Var XI. p. 325. By Prof.C. Dewey, 296 
XV. Porcelain Clay? By Prof. C. Dew 
WEYy> 
XVI. — as as the refracting power of the higher regions of 
99 
the atmosphe 
XVIL. Notice ‘ot Bee Baigent anthracite mines, &c. in Pennsylvania. By 
30 
itter, 
XVITIL. Observations on the anal ogy between the minerals of the pees 
of Europe and 
of America, more particularly as con pecan 
the woifor ity of their geological situation in both c ntries. 
By William Meade, MM. 0. 
XTX. or to Dr. Jones he Franklin Journal, on the subject of 
memorial on the Fepwaes forces of Fluids. By E. C. Ge- 
3 
net, Esq. 
XX. Remarks on Aerostation. By tl 
XXI. Review of “= a of Ne ine (continued from p. 330 
XXL arks h ainby’s Demonstratio ‘the Crank Pro- 
“tg eontaiiod in a former volume of this oak and the anon- 
ymou 18 reply to it in the last number; with a general view of 
the subject of the eae aaa of power by machinery. By 
. Blake, 
XXIEM. Reply of Mr. ‘Quinby to the writer ef the examination of his 
principle of Crank Motion, 
XXIV. Examination of the doctrine of maximum effect of Machines. 
By 
XXVI. Mesescpingios! Table, from observations made at Newfane, Ver- 
By 364 
Gen, Martin Field, 
