144 PROCEEDINGS OF THE PALEOXTOLOGICAL SOCIETY 



Page 



Stratigraphy and correlation of the Coal Measures of Maryland 

 [abstract] ; by Charles K. Swartz, W. A. Price, Jr., and Harvey 

 Bassler 154 



Eocene divisions of California [abstract] ; by Bruce L. Clark. . . . 154 



Some problems of the Adirondack Precambrian [abstract] ; by 

 Harold L. Ailing 155 



Permo-Triassic of northwestern Arizona [abstract] ; by Hervey 

 W. Shimer , 155 



Stratigraphy and structure of the Newark system in Maryland 

 and its relation to the Newark system of eastern North Amer- 

 ica [abstract] ; by George Edwin Dorsey 155 



Remarkable persistence of thin horizons [abstract] ; by George 

 Halcott Chadwick , 157 



Portage stratigraphy in western New York [abstract] ; by George 

 Halcott Chadwick , 157 



Stromatopora growth on edge-on conglomerate from the Silurian : 



by John M. Clarke 157 



Register of the Baltimore meeting. 1918 158 



Officers. Correspondents, and Members of the Paleontological Society .... 159 



Sessiox of Saturday, December 28 



Tlie tenth annual meeting of the Society was called to order by Presi- 

 dent Knowlton at 10 a. m., December 28, in the Civil Engineering Build- 

 ing, at Johns Hopkins University. The report of the Council was the 

 first matter of business on the program. 



Report of the Couxcil 



To the Paleontological Society, in tenth annual meeting assembled: 



Two formal meetings of the Council have been held during the year — 

 one at Pittsburgh, following the ninth annual meeting, and the second 

 just before the present session. Several members of the Council have 

 met informally at Washington during the year and discussed matters of 

 business, which was concluded with the other Council members by corre- 

 spondence. The following reports of officers give a resume of the admin- 

 istration for the tenth year of the Society : 



Secretary's Report 



To the Council of tlie Paleontological Society: 



Meetings. — The proceedings of the ninth annual meeting of the So- 

 ciety, held at Pittsburgh, Pennsylvania, December 31, 1917, and January 

 1 and 2, 1918, have been printed in volume 29, pages 119-166, of the 



