Boghelcund, and the Districts of Saugor and Jubulpore. 193 



Cachye and the Tonse river, present the same varieties of sandstone as occur 

 at the falls of Bowttee. 



From the cataract of the Tonse river, I proceeded by Birsingpore, Hathee, 

 Sohawel, and Nagound, to Lohargaon, and met with no rock but sandstone, 

 sometimes ferruginous, and sometimes slaty with mica, until I arrived at 

 Hathee, where it changed to argillaceous limestone. 



At Birsingpore, in the bed of a small river which runs near the town, was 

 a stratum of red marl or sandstone, containing laminas of calcareous spar 

 distinctly interstratified. At Sohawel, red marl underlay the limestone above 

 mentioned. At Nagound, in the bed of the Omeron river, the lower and 

 central portions of the limestone were exposed to view, and contained frag- 

 ments of fossil wood, stems of fern, and the gryphite shell which is peculiar 

 to this formation. At Murhur, near the tank of the old village, it reposed on 

 red marl in conformable stratification ; and at Lohargaon, the wells of the 

 cantonments exhibited its upper or marly beds reposing upon grey limestone. 



From Lohargaon 1 proceeded to Saugor. The first part of the route, or to 

 the bed of the Cane river near Tigra, exhibited, alternately, limestone low- 

 lands and sandstone hillocks. In the bed of the river itself was red marl and 

 sandstone. From that locality the same alternation extended to Hutta, where 

 the limestone reposed on red marl in the banks of the Sonar river. The same 

 order of superposition occurred at Nursinghagarh, in a small ravine north of 

 the Fort ; but there the marl was tinged by green earth or chlorite. At 

 Pureriah the limestone was exhibited in contact with trap rocks, and was 

 thereby changed both in appearance and nature. Those portions which con- 

 tained most silex were converted into chert; and, in some specimens, one half 

 consisted of chert, and the other half retained the property of effervescing 

 with acid. 



The aspect of this limestone is dull and earthy ; its stratification horizontal, 

 or nearly so, and always conformable to that of the red marl on which it re- 

 poses; — its lower beds are tiiin and separated by argillaceous partings, and, 

 for the greater part, sufficiently compact for lithographic purposes ; — its middle 

 beds are massive, usually of a dark smoke-grey colour, always exhale a strong 

 argillaceous odour when breathed upon, and contain fragments of petrified 

 wood, the stems of ferns, and a gryphite*. This variety burns into a strong 

 lime, which has the property of hardening under water. The yellow variety 



* It is very much to be regretted that no specimens of the fossils above mentioned reached the 

 Society. The rock specimens have certainly all the characters of iias; and some of them can 

 hardly be distinguished from the white lias of Bath, and a variety of lias-conglomerate from the 

 neighbourhood of Shepton Mallet. — W.J.B. 



VOL. III. SECOND SERIES. 2 C 



