TO CORRESPONDENTS.

SPECIMEN OF A LETTER.-'Sir, the essay what accompanies this, was wrote in haste, but as it rests on the broad basis of past hopes and good wishes for future generations, I trust that it will be placed in print. Nothing, Sir, stimulates the youth, so much as first impressions. My own recollections to excell in education, will be the last things what decay.'-NOTE. We recommend leeches to be placed over the thickest parts of our erudite correspondent's skull, at the expense of the town. In order to give more force to this very profound nonsense, the grammatical beauties of the composition have been italicised on our own responsibility.

CAPT. O.'s theory is quite new: whether as correct as ingenious, remains to be proved. The strictures on Capt. Couthuoy's paper upon the luminous appearance of the sea, are not to be compared to that gentleman's beautifully written paper, and therefore, is not only wholly inadmissible, but so far inferior, as not to be spoken of on the same day of the week.

MR. GILCHRIST may, perhaps, have extracted copper from the ore, of which he has forwarded a specimen; but a gentleman learned in such affairs, positively asserts that he should as soon think of running a mail coach to the moon, as extract pure copper from the SULPHATE OF IRON.

ON THE PROPERTIES OF AIR, by Mr. Fish:-gladly accepted.

B. F.'s communications are always to the point.

from Exeter, N. H., should have been post-paid, without which, we cannot see any manuscript in the right light.

from Pittsfield, Mass. The author probably wrote each paragraph on a lucky day.

from Pawtucket, R. I., has altogether mistaken his own design.

from Georgetown, D. C., smacks of the shop. Mr. P. keeps oysters to sell, or else sups on his favorites daily.

B. F. BARNUM, who for the first time gives us notice of his existence, in ten pages of German text, writes understandingly on fossil remains.

MR. PROUTY will fathom the whole matter by half an hour's industry over the pages of Priestly, Vol. 3, last edition.

ALEX. BELMONT, of T., might as well have sent his love as his SPECULATIONS. S. M. cannot very conveniently demolish Mount Holyoke.

J. L. Q. had better turn his attention to plain matters of fact:-we have no doubt that he would hoop a tub as well as any cooper in the community.

R. R. might, perhaps, alarm the neighbors, but his groans would never deceive a physician.

from Troy, N. Y., quite at home. The system of education to which the writer alludes, must be approved of everywhere.

DR. DAVIS's ingenious and scientific paper on the early discoveries in America will appear in the next number, which is the commencement of the fifth volume of this publication, and volume second of the new series.