518 



BEPOET — 1893. 



Under 3 feet .... 



3 feet and over, but under 4 feet 



4 feet and over, but under 5 feet 



5 feet and over, but under 6 feet 

 Over 6 feet .... 



Summary. 



1176 = 1000 



Comparison of the Boulders of the Dee with those of the 



Mersey 

 per cent. 



Andesite 3887 



Andesitic agglomerate and ash 9-30 



Granite, Eskdale 6-20 



Granophyre, Buttermere .....". 1'97 



Silurian grit 5'07 



Granite, Criffel 6-48 



Granite, Dalbeattie 11 "27 



Various Scotch granites .... . . 9'58 



Diorite 2-82 



Diabase 1'13 



Carboniferous sandstone 000 



Millstone grit 0-00 



Basalt 0-28 



Volcanic ash 0-84 



Mersey} 



Dee 



per cent. 



26-97 

 808 

 9-35 

 2-21 

 6-63 

 8-67 

 2-72 

 000 

 7-82 



24-32 

 0-34 

 0-17 

 0-77 

 0-17 



' The figures for the Mersey boulders have been obtained from the Usts published 

 in the twentieth report of this committee, and from a list by Capt. A. K Dwerry- 

 house in the present report. 



