PhysioLogical Facts. The number of bones in the frame-work of a human body is 260, 108 of which are in the feet and hands, there being in each 27. The quantity of blood-in adults is, on an average, about 30 pounds, which passes through the heart once in four minutes. Only one tenth of the human body is solid matter. A dead body weighing 120 pounds was dried in an oven till all moisture was expelled, and its weight was reduced to 12 pounds. Egyptian mummies, when thoroughly dried, usually weigh about 7 pounds. The lungs of an adult ordinarily inhale about 40 cubic inches of air at once ; and if we breathe 20 times in a minute, the quantity of air consumed in that time will be 800 cubic inches, or 48,000 inches an hour, and 1,152,000 a day, which is equal to 86 hogsheads.
What a noisy creature would a man be, were his voice in proportion to his weight, as loud as that of a locust! A locust can be heard at the distance of l-16th of a mile. The golden wren is said to weigh but half an ounce, so that a middling-sized man would weigh down not short of 4.000 of them, and a golden wren would probably outweigh four of our locusts Supposing, therefore, that a medium-sized man weighed as much as 16,000 of our locusts, and that the note of a locust can be heard 1-l6th of a mile, a man of common dimensions, and sound in wind and limb, ought to be able to make himself heard a distance of 1,000 miles.
A man is taller in the morning than at night, to the extent of half an inch, owing to the relaxation of the cartilages. Ten days pe,r annum is the average sickness of human life. About the age of thirty-six the lean man generally becomes fatter, and the fat man leaner.