hl. INDEX. 
avis, Emerson, rocks and minerals of Westfield, 213 
Daubeny, Dr. Charles, geology of Sicily, 230 
Declination of stars, 188 , 
Dewey, Prof. C. his Caricography, 30, 265 
Divisibility of matter, infinite, 99 
Dobson, Peter, on bowlders, 217 
Dwight’s Travels, correction in, 19 
Editor, remarks on minerals from Palestine, 21 
on the fusion of carbon, 109,119 - 
anthracite coal of Pennsylvania, 331 
notice of the Maryland aerolite, 135 
—— Dr. Thomson’s first principles of Chemistry, 162. 
————— laboratory occurrences, 365 
Education, Pestalozzian system of, 145 
Emmons, E. notice of localities of minerals, 11 
Entomology, cabinet of, 183 
Enudiometer, Prof. Hare’s improved, 67 
Finch, J. on new or variegated sandstone, 209. 
tertiary formations, 227 
Fire stones used in the manufacture of glass, 19 
Foote, Dr. L. on the weather of 1825, 303 
Foster, J. S. on fire-stones, 19 
Fountains, origin of, 394 
France, scenery, &c. of, 167 
Prench posts, 174 
frogs, R. Harlan on the larve of, 53 
¥ulminic acid, 191 
Fumigation, 379 
Fusion of carbon, 109 
Gas, illuminating, from cotton-seed, 362 
Gas-light companies, 192 
Geneva museum, 173 
Geological society, American, 201 
Geology of Sicily, Dr. Daubeny on the, 230 
fhent—school of arts and trades, 386 
Gymnastic science, 176 
Wail-rod, 196 
Halos with parhelia, 368 
Hamlin, E. L. notice of localities of minerals, 144 
Hare, Prof., his improved eudiometers, 67 
strictures on Prof. Vanuxem’s memoir, 111 
on the proceedings of the Acad. of Nat. Sciences, 114 
—— on the products of fused carbon, 118 
Harlan, R. on Batracian reptiles, 53 
new species of quadruped, 285 
of salamander, 286 
Hats, manufacture of, 193 
Heat, animal, 382, 390 
——~-— by combustion, 382 
—~—— general reflections on, 78 
~-~-— of the summer of 1825, 296 
Helvetic society, 377 : 
Herpetology, 397 
Hildreth, Dr. S. P. facts relating to Ohio, 1, 152, 319 
Hitchcock, Prof. E. experiments on topaz, 352 4 
Hubbard, S. D. on the Pe crestce wool-spinning machine, 130 
Hydrophobia, treatment of, 385 
eyerometry, 387 
Vivta, new species of, 64 
