368 Further Notes on the Earthquake. 



may also be useful : — In the lower part of the town of Ross, Here- 

 fordshire, the wife of a rev. gentleman was sitting up with an 

 infant ; she observed the west wall of the house perceptibly lean 

 towards her, as if falling, and a chair was tilted off two legs in the same 

 direction, nearly four inches. The large doors of a wardrobe, which 

 were unfastened, were thrown open by the movement. The article 

 stood back to the east, in the house of a medical doctor, also at 

 Ross." 



We are also indebted to the Rev. T. W. Webb for further 

 particulars of occurrences in his district (Hay, South Wales), 

 which show that the vertical component of the shock was 

 strikingly exhibited. Thus, a man who was sleeping on an 

 earthen floor in a valley of the Black Mountain, saw a board 

 that was beside him struck up from the floor, and sundry 

 three-legged tables and other heavy pieces of furniture were 

 set "jigging," as the folks described it. A cottager's wife 

 told Mr. Webb, that after the shaking of her bed in a room up 

 one pair of stairs, and the "jigging" of a three-legged table at 

 the foot of it had both ceased, she distinctly heard the chairs 

 moved about in the ground-floor room underneath. In this 

 case the first semi-phase of the vibration affected her room, and 

 the second semi-phase operated more especially below. At same 

 place in SouthWales,the vertical component of the shock appears 

 to have been strong enough to give a momentary lift to a gaso- 

 meter, by which action gaslights were put out. At j Chelten- 

 ham, the police were terrified by the clanking of the iron gates 

 of the cemetery. Books were likewise thrown down from 

 unfilled shelves, and pictures moved out of their proper posi- 

 tions, and left all awry. Mr. Webb also furnishes us with an 

 extract from a Hereford paper, describing what occurred at 

 Llandefailog Vach, about two miles north of Brecon. It states 

 that at Glanhondda House a ceiling was cracked across, also 

 one of the walls of Llandefailog House. The arch of one of 

 the chancel windows in the church was forced apart some 

 inches, the glass damaged, and a good deal of plaster torn off 

 the wall. A ceiling was also cracked, and some tiles displaced, 

 at Hereford. 



It will be evident that if any person competent to apply 

 the theorems of Mr. Mallet's book visited these localities, the 

 probable depth of the focus of the shock might be ascertained. 



In London and its neighbourhood a few remarkable things 

 occurred. Thus, at the Greenwich Observatory, the Astronomer 

 Royal states that one of his assistants, who was observing the 

 collimation of the wires of the altazimuth, perceived the mark 

 at which ho was looking to move in an extraordinary manner, 

 so that he thought the wall to which it was attached must bo 

 in motion. In Camden Crescent, N. W., a lady, whoso hus- 



