CHAPTEE XV. 



END OF CORRESPONDENCE WITH 

 HUGH MILLER. 



HUGH MILLER corresponded regularly with Eobert Dick 

 during the preparation of his later works on geology. He 

 sent him the proof sheets of his forthcoming books for the 

 purpose of having Dick's corrections. Even as regards the 

 Old Red Sandstone Miller's first geological work Dick 

 furnished him with many additions and corrections. For 

 instance, he sent him the first specimen of the gigantic 

 Holoptychius found under the lower beds of the Old 

 Eed Sandstone, which enabled Hugh Miller to correct 

 the theory set forth in the two previous editions of his 

 book.* Dick also enabled Hugh Miller to determine 

 positively that Dipterus and Polyphractus were one and 

 the same fish.-f- Dick also furnished his friend with 

 numerous specimens of the Diplopterus, Osteolepis, and 

 Asterolepis, accompanied by drawings of these fossil 

 fishes. When sending them, Dick said, " I am far from 

 attaching any value to these drawings. To me labour 

 is its own reward. You can cut and carve out of them 

 as you please." 



* See Miller's Old Red Sandstone. Note to the third edition, ;tad 

 note to p. 176. Ed. 1875. 



t Letter to Charles Peach, 12th August 1859. 



