XIV 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Ibregulab Publications 



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

 lications issued wholly or in part under its auspices. Each author of a memoir 

 receives 30 copies without cost, and is permitted to order any additional num- 

 ber at a slight advance on cost of paper and presswork ; and these reprints are 

 identical with those of the editions issued and distributed by the Society, but the 

 cover bears only the title of the paper, the author's name, and the statement [Re- 

 printed from the Bulletin of the Geological Society of America, vol. — , pp. — . 

 pi. — (Date)]. Contributors to the Proceedings and "Abstracts of Papers" are 

 also authorized to order any number of separate copies of their papers at a 

 slight advance on cost of paper and presswork ; but such separates are biblio- 

 graphical ly distinct from the reprints issued by the Society. 



The following separates of parts of volume 23 have been issued : 



Regular Editions 



Pages 1- 68, 40 copies, 



'* 69- 76, 40 " 



" 77- 92, 135 " 



" 93-124, 40 " 



" 125-154, plates 7-10, 240 '' 



" 155-266,* t 40 " 



'' 267-276, 40 ** 



" 277-296, plate 11, 540 " 



" 297-316, plates 12-14, 40 " 



March 14, 1912. 



14, 1912. 

 " 14, 1912. 



21, 1912. 



27, 1912. 



June 1, 1912. 



15, 1912. 



27, 1912. 



28, 1912. 

 July 15, 1912. 



15, 1912. 



" 15, 1912. 



15, 1912. 



29, 1912. 

 29, 1912. 



September 12, 1912. 



25, 1912. 

 ** 25, 1912. 

 " 26, 1912. 



12, 1912. 



12, 1912. 



21, 1912. 



22, 1912. 

 22, 1912. 

 15, 1912. 



9, 1912. 



26, 1912. 

 28, 1912. 



* Bearing on the cover 



Procredings of the Paleontoloqical Society. 



[Reprinted from the Bulletin of the Geological Society of America, vol. , pp. , pls.- 



(Date)]. 

 t Under the brochure heading is printed Pkoceedings of tub PALEONiOLoaiCAL Societt. 





317-328, 









140 





329-332, 









140 





333-348, 





(( 



15-18, 



40 





349-356, 









115 





357-370,* t 



u 



19-22, 



140 





371-376,*t 







90 





377-446, 









260 





447^56, 









110 





457-462, 





<( 



23-24, 



70 





463-470, 





(( 



25-27, 



40 





471-476, 









140 





477-486, 









140 





487-492, 





<( 



28-32, 



60 





493-516, 









40 





517-536, 



pl 



iate 



33, 



40 





537-562, 









140 





563-570, 



plates 



1 34-36, 



40 





571-686, 









200 





687-708, 





(< 



37-40, 



40 



October 



November 



