时间: 2019年12月11日 15:50

� Yon did, sir, answered a stout, broad-faced man named Blogg, who looked like a farmer, but was a linendraper in a small way of business. "You said so frequently; I remember your very words, and can testify to 'em." 鈥業 will, first of all, presuppose that air has weight owing to the vapours and halations which ascend from the earth and seas to a height of many miles and surround the whole of our terraqueous globe; and this fact will not be denied by philosophers, even by those who may have but a superficial knowledge, because it can be29 proven by exhausting, if not all, at any rate the greater part of, the air contained in a glass vessel, which, if weighed before and after the air has been exhausted, will be found materially reduced in weight. Then I found out how much the air weighed in itself in the following manner. I procured a large vessel of glass, whose neck could be closed or opened by means of a tap, and holding it open I warmed it over a fire, so that the air inside it becoming rarified, the major part was forced out; then quickly shutting the tap to prevent the re-entry I weighed it; which done, I plunged its neck in water, resting the whole of the vessel on the surface of the water, then on opening the tap the water rose in the vessel and filled the greater part of it. I lifted the neck out of the water, released the water contained in the vessel, and measured and weighed its quantity and density, by which I inferred that a certain quantity of air had come out of the vessel equal in bulk to the quantity of water which had entered to refill the portion abandoned by the air. I again weighed the vessel, after I had first of all well dried it free of all moisture, and found it weighed one ounce more whilst it was full of air than when it was exhausted of the greater part, so that what it weighed more was a quantity of air equal in volume to the water which took its place. The water weighed 640 ounces, so I concluded that the weight of air compared with that of water was 1 to 640鈥攖hat is to say, as the water which filled the vessel weighed 640 ounces, so the air which filled the same vessel weighed one ounce.鈥? � She staggered up to her feet. "Very well," she gasped out, "then I shall not spare you鈥攏or her. I have had a letter from my uncle. He has told me what you accused me of. I went to the office. That man there told me the same. The notes that I paid away to Ravell鈥攜ou 'wondered'鈥攜ou were 'uneasy!' Why, you gave me them yourself. Oh, Ancram, how could you have the heart? I wish I was dead!" � av在线看,论理片,日本在线AV,欧美AV,日韩成人 Ellen Brown. To Whit Meadow! In this damp raw weather at nine o'clock in the morning! � � Again, we come to hear Mr. Jones telling masters of the power they have over the souls of their servants, and we hear him say,