Further remarks under this head can hardly be necessary. He who considers the subject in its various aspects, will be likely to see the weight of the argument. There is a wide difference between a system which will give to each member of a family, upon the average, only about four or five ounces of food a day, and one which will give each of them more than twenty-five ounces a day, each ounce of the latter containing twice the nutriment of the former, and being much more savory and healthy at the same time. There is a wide difference, in matters of economy, at least, between ONE and TEN. I will only add, under this head, a few tables. The first is to show the comparative amount of nutritious matter contained in some of the leading articles of human food, both animal and vegetable. It is derived from the researches of such men as MM. Percy and Vauquelin, of France, and Sir Humphrey Davy, of England. 100 pounds of Wheat contain 85 pounds of nutritious matter. " " Rice " 90 " " " " " Rye " 80 " " " " " Barley " 83 " " " " " Peas " 93 " " " " " Lentils " 94 " " " " " Beans 89 to 92 " " " " " Bread (average) 80 " " " " " Meat (average) 35 " " " " " Potatoes contain 25 " " " " " Beets " 14 " " " " " Carrots 10 to 14 " " " " " Cabbage " 7 " " " " " Greens, turnips 4 to 8 " " Of course, it does not follow that every individual will be able to extract just this amount of nutriment from each article; for, in this respect, as well as in others, much will depend on circumstances. The second table is from Mr. James Simpson, of Manchester, England, in a small work entitled, "The Products of the Vegetable Kingdom versus Animal Food," recently published in London. Its facts are derived from Dr. Playfair, Boussingault, and other high authorities. It will be seen to refute, entirely, the popular notions concerning the Liebig theory. The truth is, Liebig's views are misunderstood. His views are not so much opposed to mine as many suppose. Besides, neither he nor I are infallible.