68 THE TRAP FORMATION OF 



sand-stone hills of various forms and aspects, and among these the remark- 

 able sand-stone hill of Teonda, with its summit presenting the appear- 

 ance of a hill fort wall, with its buildings within. The route by Teonda 

 from Ratgher to JBilsa is often taken for wheel carriages, to avoid the 

 pass of Garspur. This pass, the summit of which is about three miles 

 from Garspur, occurs in consequence of the road descending the southern 

 side of the chain, the crest of which it had hitherto occupied in an east 

 and west direction. The chain too here becomes forked, one limb stretch- 

 ing south west in a straight line, though not with perfect continuity of 

 existence, to near Raisen, the other proceeding directly west to the Betwa. 

 In the angle thus formed the road descends diagonally, and is extreme- 

 ly rough. It is covered, from the highest part to the lowest, with large 

 globular and angular masses of compact and amygdaloidal indurated 

 wacken, of a black colour, whilst the enveloping clays, in some parts 

 of the line of descent, appear yellow, in others a dirty reddish brown ; and 

 there likewise occur at least two strata of the characteristic hard white 

 lime-stone, the one rather above the centre, the other near the bottom. 

 At the bottom or base of the hill there are collected innumerable masses 

 of the same black boulders as belong to the hill, intermixed with pieces of 

 black horn-stone shewing veins of white quartz ; also knobs of indurated 

 clay, or semi-formed jasper of a yellow color, or yellow and green two 

 colors ; botryoidal and mammillated lumps of a yellow horn-like chalcedony 

 decaying, and variegated by the green earth contained ; geodes of a pseudo 

 amethystine quartz, often filled completely with confused crystallizations 

 of the same, intermixed with balls of either a yellow, or pure and trans- 

 parent calcspar ; thin tables of quartz ; small flattened pieces of common 

 chalcedony; — ^thin tables of quartz, white and opaque alternating in lay- 

 ers with chalcedony greenish grey and translucent, and coated exter- 

 nally, on the flattened sides with crystals of quartz small and brilliant, 

 and other similar siliceous and calcareous matter, (the latter not separate 



and 



