The circumstances of its destruction and abandonment was unknown; the site is now marked by a few heaps of ruins.
It is now divided into two parts: - Exterior Ballistics, in which the motion of the projectile is considered after it has received its initial impulse, when the projectile is moving freely under the influence of gravity and the resistance of the air, and it is required to determine the circumstances so as to hit a certain object, with a view to its destruction or perforation; and Interior Ballistics, in which the pressure of the powder-gas is analysed in the bore of the gun, and the investigation is carried out of the requisite charge of powder to secure the initial velocity of the projectile, without straining the gun unduly.
Spanish pride resented the interference of an alliance in which Spain had no part; Great Britain could not afford to allow any action to be taken which might end in the re-establishment of the old Spanish colonial system and the destruction of the considerable British trade, still nominally contraband, which had grown up with the colonies during the troubles.
The destruction of pine forests to meet the demands for naval stores, and the introduction and increased use of the refrigerator car, resulted in much attention to the growth of garden produce for Northern markets.
In the case of poorer interments the destruction of the body was, on the contrary, often accelerated by the use of quicklime.
But the Indians fought desperately for their independence, and in 1553 a general rising of the tribes ended in the defeat and death of Valdivia and in the destruction of most of his settlements.
The Itzas were one of the eighteen semi-independent Maya states, whose incessant internecine wars at length brought about the dismemberment of the empire of Xibalba and the destruction of Mayan civilization.
Olivares did not share the king's taste for art and literature, but he formed a vast collection of state papers, ancient and contemporary, which he endeavoured to protect from destruction by entailing them as an heirloom.
The almost complete destruction of the buildings on the Acropolis and in the lower city, among them many temples and shrines which religious send- the walls of ment might otherwise have preserved, facilitated the Themis- realization of the magnificent architectural designs tocles .
In the same way little by little he came to understand the news he had been told after his rescue, about the death of Prince Andrew, the death of his wife, and the destruction of the French.