Ahmed Mirza
Shah of Persia, born in 1898. He succeeded his fat father, Mohammed Ali, when the latter was deposed from the throne on July 16, 1909. AHMED MIRZA On account of his youth when he became shah, he was not able to take an active part in the administration of his government during the first years of his reign, but he gradually acquired the ability to AIR-BRAKE and of nitrogen, 79.10; or of 10,000 parts, there are, in perfectly dry air, air, of nitrogen, 7,912, oxygen, 2,080, carbonic acid, 4, carburetted hydrogen, 4, with a trace of ammonia. But air never is dry; it has always in it a varying amount of watery vapor.
The density of air being fixed at the round number 1,000, it is made the standard with which the specific gravity of other substances is compared. If water be made unity, then the specific gravity of dry air is .0012759. At 62° Fahr. it is 810 times lighter than water, and 11,000 times lighter than mercury. At the surface of the sea, the mean pressure is sufficient to balance a column of mercury 30 inches, or one of water 34 feet, in height.
Air, in music, is a piece composed of a certain number of melodious phrases, united in a regular symmetrical form, and terminating in the key in which it began.