Table I. — The Comlet 



Estimated 

 Index- or observed 

 letters. thicknesses 

 in feet. 



Genera 



Cx 

 Ca 

 lie 



Bb 5 



libs 

 Bb 2 



] Bbj 



?500 

 5 



18 



Soft blue-; 



( Micaceous 

 X or calcai 

 J Fine and c a - 

 X and shal 



C Coarse gri Wales. 

 ( bed at t 



( Grei 

 X Ci 



een am 

 calcarec 



? 



?300 

 5 to 38 



[To face p. 326. 



equivalents 



in America. 



(, Micaceous 

 ^ sional bi 

 C Coarse con 

 I of fragir 



4+ Phosphatii 



300 i V 'T , blue 

 ( bands or 



1 beds from Abs to 

 Ba 3 



Ba 2 



f Hard, ring 

 Baj 25 <( conglom 



^_ deposit e 



to beds Ab4 b e 1 o w. 



«.e (Calcareous 



( material 



Black to p 



Ad 

 Ac s 



AC4 



Ac 3 



Ac,. 



Ab 4 I 

 Ab 3 j" 



Ab. 2 



uneaton. 



Abi 



Aa 



05 | tic limes 



75 1 with pbd 

 , .w. C Grey and d 



1 7o 1 much phi 

 „, (Red or pu 1 

 io I dular. 



Bright gre 

 ( Green sano 

 \ reous bee 

 ( Green and 

 X calcareou 

 C Muddy sai 

 I beds. 

 C Greenisb- 

 ^ conglonn 

 Yellow sa 

 down in 

 which be 



~] Protolenus Zone, New Brunswick. 



North Attleboro' Beds, Massachusetts ; 

 }■ Callavia Beds, Manuel's Brook 

 (Newfoundland). 



450 



27 



22 



