His estimate of Mr. Chalk proved correct. These are however trifling inconveniences, compared with anguish of mind--compared with the sinking of a broken heart.--To tell you the truth, I never suffered in my life so much from depression of spirits--from despair.--I do not sleep--or, if I close my eyes, it is to have the most terrifying dreams, in which I often meet you with different casts of countenance. “Absolutely real—have pages and everything. I thought they’d be a nice durable cardboard. The volume of sand is greatly affected by the presence of varying percentages of moisture in the sand. A dry loose sand that has 45 per cent. With Mr. Tredgold acting as cross-examining counsel and Mr.
Matter of fact, they’re absolutely real. Pages and—Here! voids if mixed with 5 per cent. by weight of water will swell, unless tamped, to such an extent that its voids may be 57 per cent. Stobell enacting the part of a partial and overbearing judge, Mr. Chalk, after a display of fortitude which surprised himself almost as much as it irritated his friends, parted with his news and sat smiling with gratification at their growing excitement. Lemme show you.” The same sand if saturated with water until it becomes a thin paste may show only 37½ per cent. voids after the sand has settled.
Table I shows the results of tests made by Feret, the French experimenter. Two kinds of sand were used, a very fine sand and a coarse sand. They were measured in a box that held 2 cu. ft. and was 8 ins. deep, the sand being shoveled into the box but not tamped or shaken. After measuring and weighing the dry sand 0.5 per cent. by weight of water was added and the sand was mixed and shoveled back into the box again and then weighed. These operations were repeated with varying percentages of water up to 10 per cent.
It will be noted that the weight of mixed water and sand is given; to ascertain the exact weight of dry sand in any mixture, divide the weight given in the table by 100 per cent. plus the given tabular per cent.; thus the weight of dry, fine sand in a 5 per cent. mixture is 2,035 ÷ 1.5 = 1,98 lbs. per cu. yd. The voids in the dry sand were 45 per cent. and in the sand with 5 per cent. moisture they were 56.7 per cent. Pouring water onto loose, dry sand compacts it.
By mixing fine sand and water to a thin paste and allowing it to settle, it was found that the sand occupied 11 per cent. less space than when measured dry. The voids in fine sand, having a specific gravity of 2.65, were determined by measurement in a quart measure and found to be as follows: