662 Geological Specimens from Kemaon. [Aug. 



present series may not be very different as they were collected by 

 the same persons and on the same occasion. In the almost total 

 absence of any definite information regarding the structure of this 

 portion of the Himalaya, it would be wrong to reject even the scanty 

 intelligence which these specimens gathered by native collectors are 

 calculated to afford. They were said to have been collected at an 

 altitude of 1,500 feet on the first range of acclivities facing the valley, 

 but this I doubt, it being more probable that the collectors contented 

 themselves by selecting them from the beds of streams at the foot 

 of the mountains. 



No. 1. Is a claystone porphyry containing white crystals of felspar 

 imbedded in a green earthy matrix. 



2. The matrix is brown and the crystals of felspar reddish-brown, but 

 in other respects it is the same as No. 1. 



3. Small spheroids instead of angular crystals are imbedded : a similar 

 basis to that of the two first specimens. 



4. Veins of quartz penetrate the same substance. No. 4^, a variety with 

 undulating veins of white felspar. 



5. Porphyritic breccia consisting of angular fragments of the matrices of 

 each of the former rocks : agglutinated specks of felspar also occur in it. 



6. Serpentine and quartz. 



7. Porphyritic breccia. 



8. The same with veins of serpentine. 

 9. 



10. Claystone of brown color. 



11. Ditto greyish black. 



12. Another variety. 



14. Steatitic sandstone of the same nature as 47 and 48 of the Kemaon 

 series. 



15. Compact bluish-black limestone. 



17. Quartzose sandstone similar to 70 of the Kemaon series. 



18. Gneiss. 



19. Other varieties of the same. 



20. The same with hornblende. 



23. Quartz with small vesicles from which felspar has been removed. 

 24. 



25. Felspar. 



26. Sandstone. 



27. Quartz rock. 



28. Decomposed green stone. 



29. Decomposed gneiss, fine granular structure. 



30. Calcareous grit stone, the same as 105, Kemaon series. 



31. Coarse quartzose sandstone. 



32. Magnesian limestone. 





