Sixth. Much is yet to be learned in regard to the preservation and economical use of manure. Seventh. The introduction, more generally, of labor-saving machinery, and particularly of the itinerant thrashing-machine, deserves to be mentioned. Eighth. Gardening and raising fruit are much neglected by our farmers. It is respectfully suggested that special committees might, with advantage, be raised upon these and other useful topics, to report at the next annual meeting. Pennsylvania contains nearly thirty millions of acres. According to the census of 1840, she had a population of one million seven hundred and odd thousands, which is nineteen acres and a fraction for each inhabitant. In 1842, she raised, of grains of all kinds, upward of sixty millions of bushels; of potatoes, nearly thirteen millions of bushels; of hay, upward of two millions and a quarter of tons; of flax and hemp, upward of three thousand three hundred tons; of tobacco, four hundred and eighty thousand tons; of silk, upward of twenty-one thousand pounds; of sugar, nearly three millions and a half of pounds; and of wines, nearly eighteen thousand gallons. THE HENRICO SOCIETY held its third annual show at Richmond, Virginia, November 1st. The proceedings are published in the Richmond Enquirer. The Executive Committee reports, that although there is a falling off in its receipts, there is an increased interest and attention to its proceedings by the planters. Mr. C. T. Botts, Editor of the Southern Planter, made the address, from which we subjoin an extract.