BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Brochures of Volume 22 



Price to Price to 

 Fellows, the Public. 



Brochures. Pages. Plates. Figures. 



Proceedings of the Twenty-third 

 Annual Meeting of the Geological 

 Society of America, held at Pitts- 

 burgh, Pennsylvania, December 

 27, 28, and 29, 1910. E. 0. Ho-' 

 \EY, Secretary 1-84 1-6 .... $1.00 $1.50 



Proceedings of the Second Annual 

 Meeting of the Paleontological 

 Society, held at Pittsburgh, Penn- 

 sylvania, December 28-29, 1910. 

 R. S. Bassler, Secretary 85-102 .20 .30 



Origin of the thermal waters in the 

 Yellowstone National Park. 

 Arnold Hague 103-122 .20 .30 



Repeating patterns in the relief 

 and in the structure of the land. 

 W. H. HoBBS 123-176 7-18 1-44 .75 1.10 



Pre-Glacial course of the Upper 

 Hudson River. W.J.Miller.. 177-186 .... 1 .10 .15 



Aggraded limestone plains of the 

 interior of Bahia and the cli- 

 matic changes suggested bv them. 

 J. C. Bkanner ". 187-206 14-17 1-2 .30 .45 



Aftonian mammalian fauna, II. 



Samuel Calvin 207-216 18-24 .... .30 .45 



* Conference on the faunal criteria 

 in Paleozoic paleography. R. S. 

 Bassler, Secretary 217-280 .65 .90 



Revision of the Paleozoic systems. 



E. 0. Ulrich 281-680 25-29 1-19 4. 15 6. 20 



Cirques and rock-cut terraces of 

 Mount Toby. B.K Kherson.. 681-686 30-31 .... .10 .15 



Mid-continental eolation. C. R. 

 Keyes 687-714 .30 .45 



Abstract of papers presented at the 

 Twenty-third meeting of the So- 

 ciety, but not published in full 

 in the preceding pages of this 

 volume, together with discus- 

 sions of papers as far as preserved. 

 E.O.KovEY, Secretary 715-738 .25 .35 



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 permitted to order any additional number at 

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

 identical with those of the editions issued *and distributed by the Society. Con- 

 'tributors to the proceedings 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 bioliographically distinct from the brochures issued by the Society. 



* Un4er the brochure heaciing is printed Proceedings of the Paleontological Society. 



