I see in the agricultural papers from abroad, frequent notices of the success of tile "Lois-Weedon" mode of culture. Can yen oblige your readers with a brief account of it? W. P. S.

The Iiois-Weedon plan consists in thorough drainage, deep culture, and the aeration of the soil and crops;, to" which is added, in practice, the absence of much or any manure, which is procured from that "second farm" which lies below the old cultivated ground. They are beginning to promulgate the doctrine that thorough stirring of the soil, on old Jethro Toll's plan, admits so much ammonia, that other fertilisers may, in many soils, be almost entirely dispensed with. An old farmer, named Moore, was so convinced of having solved the golden problem of steam ploughing, that he sold his farm horses!

The Whole story of cultivation may be condensed into a few words, thus: The roots of delicate plants will not travel through earth that has never seen daylight. Dr. Clark once said: "The frost is God's plough, which he drives through every inch of ground," pulverising and fructifying all.

(Calla.) Thanks; appreciation is reward; we have no other aim or compensation, and, of course, her beautiful thoughts are deeply impressed. If we were obliged to choose, preference would be given to young ladies like her for critics, even over her favorite "Jeffreys." We are sorry to inform ber, "Jeffreys" is engaged!

Philadelphia, June 13,1856. Dear Sib: The silver maples which line our streets in different parts of the city, have been, for two years past, nearly destroyed by caterpillars. These trees have been much recommended for their beauty and rapid growth, and, at the same time, said to be free from attacks of insects. You would confer a favor on many of your friends, if you would give us some light as to the manner of preserving these trees, in the Horticulturist.

Respectfully, yours, P. S. P.

The idea that there is any tree free from the attacks of some kind of insect or another, is a pleasant fiction. In this respect, every tree has its natural enemy, not excepting even the notorious ailanthus. When these trees are in their native localities, the abundance of them, and of their protectors, the birds, keeps the "enemy" from making much show. When cultivated, circumstances are just reversed; till, year by year, insects so increase, that we first observe, then wonder where they come from. In the towns, we must take the places of the birds. In the case of the maple, this can very readily be done. The caterpillars you speak of are the larva of the dropworm. They hang like tassels on the trees before the leaves expand. A half hour to each tree, with a pole and pruning shears, would rid you of your share; but they will come from your neighbors! Induce them, if possible, to go and do likewise. If they be too negligent, use your influence with the City Councils to make them. No man should be subjected to a nuisance, by the neglect of his neighbor*

The New York State Agricultural College is attracting general attention. The charter obtained, a location becomes a matter of great importance. The citizens of the counties of Seneca, Cayuga, and Tompkins, have had a meeting, and designated Sheldrake Point as a desirable location.