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Thus, it might happen to any of us, at some social juncture, to remark gaily, "Of the content of the King of the Cannibal Islands' Stewpot I am content to be ignorant"; or "Not content with measuring the cubic content of my safe, you are stealing the spoons."

Fancy, Lorton, two thousand millions cubic feet of heroes, eh! But, you havn't told us what amount of dust and ashes you would apportion to each separate hero " he thus proceeded, with his caustic wit, seeing that Bessie Dasher and her sister were both laughing; and even Min was smiling, at his absurdities.

Nevertheless it will do the work of from 75 to 100 men, since its capacity is from 800 to 1,000 cubic yards per day, the amount of rock uncovered depending, of course, upon the depth of earth overlying it. The excavator will dump 30 feet from the center line of the car, and 26 feet above the track, which is laid on the rock. Total weight about fifty tons.

It is common to have the degree of density of the ether spoken of in the same way, and for the same reason, that its elasticity is spoken of. The rate of transmission of a physical disturbance, as of a pressure or a wave-motion in matter, is conditioned by its degree of density; that is, the amount of matter per cubic inch as determined by its weight; the greater the density the slower the rate.

From the final data, plot the corrections to be applied so that they may be easily read for each cubic centimeter throughout the burette. The total correction at each 10 cc. may also be written on the burette with a diamond, or etching ink, for permanence of record. This slowly unites with the main body of liquid, but requires an appreciable time.

The whole quantity of gas generated annually being upwards of 397,000,000 cubic feet, by which 61,203 private, and 7,268 public or street lamps are lighted in the metropolis. In addition to these great companies, there are several private companies, whose operations are not included in the foregoing statements. Abridged from Matthews's History of Gas-Lighting, and the London Magazine, Dec. 1827.

We will now compare the heating power of this gas with bituminous coal, taking as a basis a coal slightly above the general average of the Pittsburg coal, viz.: "We find that 38 lb. of this coal contains 146,903,820 heat units. The 64.4 lb. of this coal contains 210,069,640 heat units, or 54.4 lb. of coal is equal in its heating power to 1,000 cubic feet of natural gas.

The Chapelle-aux-Saints skull ALONE is proved to have the high capacity of 1620; and it is as yet not much more than a supposition that the earlier skulls had been wrongly measured. He assures us that a modern skull of the same dimensions would have a capacity of 1800-1900 cubic centimetres, and warns us that we must take into account the robustness of the body of primitive man.

SUSTAINING WEIGHT OF PONTOONS. A pontoon having within nothing but air, is merely a measuring device which determines the difference between the weight of water and the amount placed on the pontoon. Water weighs 62 1/2 pounds per cubic foot. Ordinary wood, an average of 32 pounds, and steel 500 pounds.