BUNDELCUND. 49 



Ceystalline Rocks. — This may be the best place to give a notice, I 

 cannot call it a description, of the crystalline rocks ; interesting as I felt 

 the subject to be, I did not devote any time to its special study ; it is a 

 question entirely distinct from the one I had in hand ; to have taken it 

 up, would have interfered with what is, for present requirements, of more 

 importance. 



Of the many varieties of crystalline rock that I met with, there is not 



one for whose intrusive origin I found any evi- 

 General character. 



dence, although a large proportion of them are 



mineralogically such as from a hand specimen, might be considered 

 igneous — true granites and true syenites with a large variety of compact 

 and of crystalline felspar rocks, both pure and quartziferous ; in structure 

 also, there are some characters which would further suggest this opinion ; 

 many of them are homogeneous for considerable thicknesses, and weather 

 concentrically into large spheroidal masses : but I no where saw any thing 

 like a dyke, nor could I trace to these masses any modification of the 

 surrounding rock as if they had been centres of metamorphic influence 

 or of mechanical effort; it is sometimes even the reverse, rocks which 

 least bear the stamp of metamorphism, are in the immediate neighbour- 

 hood of these completely crystalline kinds. Although as I said, often 

 uniform over considerable areas, as about Shagurh, the opposite state is 

 the more common ; it is most perplexing the manner in which a well crystal- 

 lized ternary granite mixes up with a pure felspar rock, even in the same 

 weathered block without any definable relation ; the rock already noticed 

 (p. 40) in the Dessaun is of this nature, and its position almost necessari- 

 ly assigns to it a metamorphic formation, at least, it alternates with a rock 

 that is undoubtedly metamorphic — this however may be an erroneous 

 reading of the section, for there is in it and with the same apparent posi- 

 tion as the granitic rock, a crystalline green stone, whose origin from 

 fusion I am not disposed to question. 



The only portion of the crystalline area which I noticed as peculiar 



H 



