Peter looked apprehensive.
The rotation of crops was studied thoroughly, and beans and peas were then made one in a four-course rotation. But even earlier than 1844 it had been observed that leguminous plants, of which there are thousands distributed over this sphere, had a beneficial effect on the land for the succeeding crop. At Rothamsted the legumes, or such of them as beans, peas or red clover, were thoroughly tried, and it was invariably found as one in a rotation of four to produce the same results. In some way that they then could not explain, the land after a crop of legumes was very much richer in nitrogen, amounting in many instances to 300 pounds per acre. These worthy gentlemen kept on for years trying to account for the phenomenon and endeavored to discover the true source of nitrification. But to the French chemists Schlosing and Muntz belong the credit of establishing by experiment the true nature of nitrification. Their first paper on the subject appeared early in 1877, or only twenty-nine years ago. They wished to ascertain if the presence of humic matter was essential to the purification of sewage by soil, and for this purpose they conducted an experiment, in which sewage was passed slowly through a column of sand and limestone. Under these circumstances complete nitrification of the sewage took place. They then allowed a chloroform vapor to fall for some time on top of the column, the sewage passing as before. Nitrification now entirely ceased and was not renewed for seven weeks, though the supply of chloroform was suspended. A small quantity of nitrifying soil was shaken with the water and the turbid extracts poured on the top of the column. Nitrification at once recommenced, as strongly as before.
Felix's voice again: "Sir, it was our Lieutenant Hartford that the Gooks got. I'd like to go in early."
It took Takeko only ten minutes to have three seven-inch fish, so plump and meaty-looking that not even a xenologist would have wasted time studying them, lying on the grass.
We talked of money—an ever-absorbing topic both to Harris and to me. He told me his books had brought him practically nothing. For The Bomb, if I remember correctly, he received fifty pounds—certainly not more than one hundred pounds.
efforts to educate his own children more difficult. But a more intelligent type of middle-class parent sends his boy in for public scholarships, sets to work to get educational endowment for his own class also, and makes another step towards Socialism. Moreover, the increasing intelligence of the middle-class parent and the steady swallowing up of the smaller capitalists and smaller shareholders by the larger enterprises and fortunes, alike bring home to him the temporary and uncertain nature of the advantages his private efforts give his children over those of the working man. He sees no more than a brief respite for them against the economic cataclysms of the coming time. He is more and more alive to the presence of secular change in the world. He does not feel sure his sons will carry on the old business, continue the old practice. He begins to appreciate the concentration of wealth. The secular development of the capitalistic system robs him more and more of his sense of securities. He is uneasier than he used to be about investments. He no
Down deep, under the waters of Lough Neagh, can still be seen, by those who have the gift of fairy vision, the columns and walls of the beautiful palaces once inhabited by the fairy race when they were the gods of the earth; and this tradition of a buried town beneath the waves has been prevalent for centuries amongst the people.
#地震快讯#中国地震台网正式测定：08月30日15时24分在新疆阿克苏地区库车市（北纬41.28度，东经83.85度）发生3.0级地震，震源深度10千米。（ @中国地震台网 ）
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