XX 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Irregular 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 state- 

 ment [Reprinted from the Bulletin of the Geological Society of America, vol. 

 — , pp. — , pl- — • (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 

 ai'e bibliographically distinct from the reprints issued by the Society. 



The following separates of parts of volume 26 have been issued : 



Regular Editions 



* Bearing on the cover 



Proceedixgs of the Paleoxtological Society. 



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



pis. , (Date)]. 



t Under the brochure heading is printed Proceedings of the Paleontological Society, 

 t Bearing imprint [From Bull. Geol. Soe. Am., Vol. 26, 1914]. 



