OF BUNDELKHAND, &c. 41 



The calcareous conglomerate must be classed, in point of time, at 

 least with the tufas, and other calcareous formations, such as common 

 leanJmr, so prevalent in India : it is generally admitted, that these sub- 

 stances have been deposited from water, in rapid motion, holding the 

 matter in solution, and under circumstances unfavourable both to crystal- 

 ization and regular deposition, and it has sometimes occurred to me, 

 that the matter of which they are composed, may, in other countries, 

 under more favourable circumstances, have been deposited in regular beds 

 and strata, such as the oolitic formation of England ; and I am the more 

 inclined to think so, from finding the lias stratum so thin ; also from its 

 upper slaty beds being in general wanting ; and further, from not having 

 hitherto discovered any traces of a regular oolitic, or any later regular 

 formation. 



» 



The great extent of trap rocks, being nearly equal to a third of the 

 area of the country, and the absence of all regular formations posterior 

 to lias, if future research should prove it to be the case, are undoubtedly 

 remarkable features in the geology of India ; and I cannot help thinking 

 that they may, hereafter, be the means of explaining some of the most 

 important phcenomena in the science, provided the facts of the case are 

 well and justly ascertained. 



M 



Barometrical 



