46 



THE GEOLOGIST. 



been less and less severe as they ranged westward, from the minor ones 

 not having been observed at the islands of St. George and Graciosa, si- 

 tuated to the west of Terceira, from only those which destroyed the 

 town of Praya having been noticed at the capitals of Pico and St. Mi- 

 chael's to the S.W. and S.E. of Terceira, and from the shocks having 

 been preceded by noises which appeared to come from the eastward, that 

 the centre of action was situated in that direction, at no great distance 

 from Praya ; and he further infers, from the shocks which accompanied 

 submarine explosions between St. Michaels and Terceira, and the throw- 

 ing up of the volcanic island of Sabrina in 1811, that the earthquakes of 

 June were attended by submarine volcanic eruptions." 



2nd. — Geological remarks made during a journey from 

 Delhi through the Himelaya mountains to the frontier of 

 Little Thibet. By the Revd. Tiohert Everest. 



The route of the author, after leaving Delhi, lay through 

 Seharumpore, the Keeru Pass in the Sevalik Hills, and 

 thence over a tract of country ranging nearly N. by W. to 

 Rampore, in the valley of Sutling; it afterwards followed 

 the course of that valley to the junction of the Leo River, 

 and terminated near the Kealghur Fort, in Little Thibet. 

 Delhi is at the N.E. extremity of a vast quartzose sandstone 

 formation in which no organic remains have been found. 

 From Delhi to the Sevalik Hills (100 miles) the surface con-^ 

 sists of an alluvial soil, similar to that now brought down by 

 the Jumna, composed of the detritus of granitic and other 

 ancient rocks. The tertiary strata of the Sevalik Hills are 

 noticed by Mr. Everest only because the mammalian re- 

 mains found in them do not include any portions of the mo- 

 dern wild elephant of that region. The strata of the Hima- 

 laya, upon which the traveller sees across the valley of the 

 Dhoon (15 miles), consist of clay slate, dipping at a high 

 angle to N.E., with dark limestones and indurated sandstone 

 traversed by greenstone veins, in which no organic remains 

 have been found. The road from Mussoori to the Jumna 

 traverses similar rocks, with the addition of greywacke. On 



