way to apply in the hill for potatoes, is the same as for corn. I have come to the conclusion from what experience I have had with the article, that it answers the best purpose to use it for spring crops, in the manner above stated, or compost it with charcoal dust, or well decomposed pond mud, to absorb and retain the ammonia, it being very volatile in its nature. I have not written this for publication; I have only thrown out a few hints for you to embody. SETH RAYNOR." Although the above was not written for publication, we prefer to give it just as it was written, in the plain style of one farmer to another. INTERESTING LETTER FROM EDWARD H. SEAMAN, ESQ., SEC. OF QUEENS CO. AG. SOC.--Successful experiments since 1847--Great increase of straw and wheat--Harrowing in guano, 300 lbs. to the acre, produced 41 bushels of wheat. Increase, seven bushels for each 100 lbs--Thirty bushels of wheat per acre on an old worn out buckwheat field--Advantage of guano in drouth--astonishing effects from top dressing grass. _Cherrywood, Sept. 11th, 1852._ MR. SETH CHAPMAN--Dear Sir,--I forward according to request, the results of several years use of Peruvian Guano, upon my farm at Jerusalem, Long Island. The first decisive benefit from guano that I shall notice, was obtained from using it for wheat, as a top-dressing. In 1847, October 1st, I took a field containing 6 acres of oat stubble, on which I used some manure, all over the field; top-dressed with Peruvian guano, at the rate of 300 lbs. per acre, sown (fortunately just before a storm,) upon the furrow and harrowed in with the wheat. Four acres of the field were sown with the old-fashioned red flint wheat, which requires more manure than any other kind among us. The rest of the field was sown with a soft white hulled wheat, the name of which I do not remember. July 5, 1848.--Harvested said field--Red wheat yielded well from straw, 14 sheaves to the bushel--white wheat 20 sheaves to the bushel--straw very large and thick. Had 164 bushels of wheat, or 41 bushels per acre; and 58 bushels of white wheat or 29 bushels per acre; without the guano I think I could not have obtained much over 20 bushels per acre.--1848, Oct. 2. Again sowed wheat upon a six acre lot of oat stubble; seed red flint wheat--manured about the same as previous year--used 300 lbs. guano per acre, as top-dressing for 4 acres and moss bunker fish dirt at the rate of 10,000 per acre upon the two acres, sowed upon the furrow, and harrowed in just previous to a storm--Harvested the 10th of July 1849. The straw very large, and wheat heads long, but grain very much injured by fly or weevil--very little difference between fish and guano top-dressing; yield 188 shocks--175 bushels; not quite 30 bushels per acre. Same