296 A NATURALIST IN HIMALAYA 



on the fragments of the younger ones. Old deposits 

 will be piled on new deposits, and thus through 

 countless centuries stratum will be rolled on stratum. 



And so from the minute sand-grain to the mighty 

 strata inorganic nature is revolving. The little 

 crystal in the brook, the pebble in the stream, the 

 boulder in the torrent, layer upon layer of sand, fold 

 upon fold, stratum upon stratum, all are rolling onward 

 in one endless revolution. 



This concludes my record of observations in the 

 Himalayan valley of Hazara. I trust I have not 

 cumbered it with too much detail, and yet hope I have 

 been able to add something to the substance of scien- 

 tific fact. The reader may not appreciate how much 

 patience is needed before Nature will disclose the 

 methods of her work. He who would pry into her 

 secrets must face failure after failure, and be prepared 

 for many hours of waiting before he will achieve some 

 slight success. It is the record of those patient hours 

 that 1 have gathered into the foregoing pages. I will 

 be satisfied if the account of them should give to others 

 some slight degree of that pleasure and satisfaction 

 which the observation of them has given to me. 



