X BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Irregular Publications 



In the interest of exact bibliography, the Society takes cognizance of all publi- 

 cations issued wholly or in part under its auspices. Each author of a Memoir 

 receives 30 copies without cost, and is authorized to order any additional number 

 at a slight advance on cost of paper and presswork ; and these separate brochures 

 arc identical with those of the editions issued and distributed by the Society. 

 Contributors to the proceedings are also authorized to order any number of separate 

 copies of their papers at a slight advance on costof paper and presswork ; but such 

 separates are bibliographically distinct from the brochures issued by the Society. 



The following separates of parts of volume 11 have been issued : 



Editions uniform with the Brochures of the Society 



Pages 15- 00, plates 1- 8 ; 250 copies. February 28, 1900. 



61-106, plates 9-14; 80 " 



11 107-114, 30 " 



" 115-126, 130 " 



" 127-144, plates 15-17; 130 " 



•' 145-178, 100 " 



" 179-206, 230 " 



" 207-216, plates 18-19; 130 " 



" 217-230, plate 20; 360 " 



" 231-240, 130 " 



11 241-332, 105 " 



" 333-346, 130 " 



" 347-376,' plates 21-22; 180 " 



" 377-388, plate 23; 80 " 



" 389-416, plate 24; 150 " 



" 417-432, plates 25-2!); 100 " 



" 433-448, plates 30-39 ; 230 " 



" 449-460, plates 40-42 ; 80 " 



" 461-474, plates 43-49; 280 " 



" 475-502,* plate 50; 50 " 



" 503-510, 130 " 



Special Editions f 



Page 2 J 30 copies. January 31,1900. 



Pages 3- 5 130 " " 31, 1900. 



6- 7 30 " " 31, 1900. 



8- 10 30 " " 31, 1900. 



10- 14 30 " " 31, 1900. 



__♦ 



*In addition to the above, 100 copies were printed from the same type by Judd & Detvveiler at 

 the request of Mr Hopkins, the pagination and plate numbers being changed and the Bulletin 

 caption at the head of the first page and line "Presented before the Society December 30, L9O0," 

 as well as cover, being omitted. 



t Bearing the imprint [" From Bull. Geol. Soc. Am., Vol. 10, 1898."] 



X Fractional pages are sometimes included. 



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