Geological Society . 217 



its frequent inundations, the Government of Bern determined to 

 direct its waters into the lake of Thun. This object was finally 

 accomplished about the year 1713, by making two parallel tunnels, 

 about a mile in length, between the original course of the river and 

 the lake; and no sooner was the Kander admitted into them than 

 it burst up the arches, tore away the masses of rock which ob- 

 structed its passage, and bore a vast heap of gravel and detritus 

 into the lake. The delta thus commenced, and increased by the 

 sedimentary matter brought down during nearly 120 years, now 

 presents a tract covered with trees, extending about a mile along 

 the original shore, and a quarter of a mile from it into the lake. 

 The depth of the ravine by which the Kander now enters the lake 

 is 50 feet. The depth of water at the part occupied by the delta 

 Mr. Egerton could not ascertain, but, from the declivity of the 

 ancient banks, he conceives that it must have been consider- 

 able, and Saussure found some parts of the lake to be 350 French 

 feet in depth. The author determined by actual measurement the 

 angle at which the new deposit dips beneath the waters of the lake, 

 at the extremity of the delta. At 30 yards from the shore, he 

 found 14- fathoms of water; at 60 yards, 23 fathoms, and at 120 

 yards no bottom at a depth of 82 fathoms. 



A communication by Colonel Sykes was then read, entitled, " A 

 Notice respecting some Fossils collected in Cutch by Captain Smee, 

 of the Bombay Army." 



The district from which the specimens were procured is situated 

 between the 23rd and 24th parallels of N. lat. and 70th and 71st 

 degrees of E. long., and is bounded on the E. and S. by the Run. 

 The fossils consist of four species of Ammonites, one of Trigonia, 

 two of Astarte, one of Corbula, one of Gryphaea, and a coral 

 having a nummulitic form. One of the Ammonites has a general 

 resemblance to A. Wallichii, and another agrees in some respects 

 with A. Nepalensis, both of which occur in the fossils procured in 

 the Himalaya range ; one specimen of the Gryphsea is stated to 

 resemble closely the Gryphsea of the Oxford clay of England ; and 

 the coral belongs to the genus which occurs in the Kressenberg iron 

 ore. Specimens of silicified wood, lignite and alabaster from Cutch 

 were also exhibited, and of durable oolite from near Poorbunda, on 

 the W. coast of the peninsula of Goojrat ; and it is stated that the 

 same rock is found abundantly at Raujcote in the centre of the 

 peninsula. In conclusion, Colonel Sykes observes, that if English 

 analogies may be taken for a guide, the district from which the 

 above fossils were obtained would seem to be composed of second- 

 ary rocks, as Ammonites, Trigonia, and Gryphaea have not been 

 found in England higher than the upper chalk. 



A paper was afterwards read " On the Gravel and Alluvial De- 

 posits of those Parts of the Counties of Hereford, Salop, and 

 Worcester which consist of Old Red Sandstone ; with an Account 

 of the PufFstone, or Travertin of Spouthouse, and of the South- 

 stone Roch near Tenbury, by Roderick Impey Murchison, Esq., 

 V.P.G.S. 



Third Series. Vol. 5. No. 27. Sept. 1834. 2 F 



