THE SAGAR DISTRICT. - 61 



haftd, and clustered together to the exclusion of any other matter ; how- 

 ever, it must be added, that some specimens of this species of spath are 

 seldom wanting wherever the lime-stone rises to day, indeed the crys- 

 talized matter of this formation, when not imbedded in other substances, 

 seems mostly to present itself with either a fibrous, striated, or radiated 

 structure, and it is in its nature not pure and translucent. 



A calcareous cement in these trap vallies, and near a streamlet, is of- 

 ten found forming trap tuff, that is, found uniting small pisi-form speci- 

 mens of all the rocks, incident to this tract, into a mass, or bed of some- 

 times considerable induration, the surface of which will attract the eye 

 by its rusty iron brown aspect, and its sterility. 



It remains for me to describe the sand-stone underlying the trap, and 

 so very often rising up through it, in the shape of hills, and swells. It is 

 in no instance, that I have seen, interstratified with any other rock. Red 

 marl, or clay, is sometimes to be seen alternating with it, in thin streaks, 

 resembling the same rock under the lias of Hutta, &c. Galls of clay, or 

 lithomarge, may frequently be found imbedded ; and as to its colors what 

 elsewhere has been said of the same rocks in this regard occurs here, 

 namely, they vary from a dark chesnut or chocolate, through red, reddish 

 and salmon coloured, to nearly white and white. Massive kinds often 

 shew two colors, — seldom more than two, and these two colors are a grey- 

 ish white, and a deep chocolate, or it is a deep chocolate speckled with 

 white spots. The slaty varieties, on the other hand, are exhibited cloud- 

 ed, streaked transverse to the structure, zoned, green, brown, red, ochre 

 yellow, orange yellow, &c. &c., are, in fact, seldom exhibited, otherwise 

 than with much diversity of shade and color, except perhaps a green va- 

 riety. These slaty kinds are extremely micaceous, and the colors in the 

 streaked varieties above alluded to, change at the line of cleavage ; and 



R lastly 



