Geological Society. 295 



respond with the central portion of the new-red-sandstone of En- 

 gland. 



At the pass of Kattra, near the summit of the second range of hills, 

 a friable variegated sandstone appears, in which thin laminae of sand- 

 stone alternate with red clay, resembling the red marie of England, 

 both reposing on slaty marie coloured by chlorite, which rests, appa- 

 rently, on massive horizontal strata, resembling clay-slate or grau- 

 wacke. 



At the bottom of the cataract of Billohi, 398 feet in height, argilla- 

 ceous sandstone was found, tinged deeply by red oxide of iron, and 

 containing disseminated mica, — on which reposed a siliceous sand- 

 stone of a more compact texture. 



Greenish white arenaceous sandstone not quite so compact was 

 found at the cataract of Bauti, 420 feet below the summit, varying 

 in colour as it ascended : and twenty-four miles further westward, at 

 the cataract of Kenti, and at a depth of 272 feet, as well as at the ca- 

 taracts of Chachye and of the Tonse river, sandstone of the same 

 general character was observed rising to the surface. 



The sandstone of Simmereah is sometimes ferruginous, at others 

 slaty, and interspersed with mica ; in the neighbourhood of Hathee it 

 is succeeded by what the author considers as the equivalent of the 

 lias-limestone. 



At Birsingpur, in the bed of a small river, is a stratum of red marie 

 or sandstone, containing laminae of calc-spar j at Sohawel the red 

 marie underlies the limestone above mentioned ; and at Nagound in 

 the bed of the Omeron river, the lower and central beds of limestone 

 are exposed to view, containing fragments of fossil wood, stems of 

 ferns, — and, as the author states, the gryphite which is characteristic 

 of this formation in Europe. 



This limestone appears also at Hatta and Narsinghagarh reposing 

 on red marie, and in the latter situation is tinged green by chlorite. 

 At Patteriya, where the limestone comes into contact with trap, the 

 strata assume in some places the form of chert. 



The aspect of this limestone is dull and earthy ; its stratification ho- 

 rizontal or nearly so, and always conformable to the red marie on 

 which it reposes. 



Between the pass of Patteriya and Saugor, the author met with no 

 other rock than trap, generally in the form of boulders imbedded in 

 friable wacken, and composed of concentric layers : beneath the bould- 

 ers is a bed of indurated wacken and basalt -, and under the latter a 

 stratum of impure limestone, in some parts containing a large pro- 

 portion of alumine j below the limestone is a stratum of amygdaloid, 

 containing calc-spar and a few zeolites, which at Saugor reposes 

 on sandstone. 



The trap of Saugor continues without interruption to Tendukaira : 

 it contains abundance of chalcedony, semiopal, mealy zeolite, ca- 

 chalong, agates, jaspars and heliotrope. 



At about the distance of three miles from the foot of the hills near 

 Tendukaira, in the valley of the Nermada river, the older rocks are 

 exposed to view, in strata which are highly inclined, — in some in- 

 stances 



