About 1645 a powder magazine in the Propylaea was ignited by lightning and the upper portion of the structure was destroyed.
An oxide of composition Ru 4 0 9 is obtained as a black hydrated powder when the peroxide is heated with water for some time.
From the Arabic); the use of powder and of glass mirrors, and also of the rosary itself - all these things came to Europe from the East and as a result of the Crusades.
The same authorities recommend a powder, composed of larvicide (an aniline substance), chrysanthemum flowers, and valerian root, to be burnt in bedrooms. Anointing the skin with strong-smelling substances is of little use in the open air, but more effective in the house; turpentine appears to be the best.
The chief command of the newly organized army was also given to him, but previously, at the head of a body of militia, he had demanded satisfaction for powder removed from the public store by order of Lord Dunmore, the royal governor, with the result that £330 was paid in compensation.