1908.] NATURAL SCIENCES OF PHILADELPHIA. 503 



prehensive treatises are The North American Devonian Crustacea (1888), 

 Introduction to the Study of the Genera of the Paleozoic Brachiopoda 

 (1892 and 1894), and The Paleozoic Reticidate Sponges (1898), all pub- 

 lished in titular conjunction with James Hall; The Naples Fauna (1899 

 and 1904), The Early Devonic of New York and Eastern North America 

 (1908). In addition to numerous other papers on problems in geology- 

 he has also written on ceramics. 



He received the degrees of A.M. and Ph.D. {honoris causa) from the 

 University of Marburg in 1898; LL.D. from Amherst, 1902. 



November 17. 

 The President, Dr. Samuel G. Dixon, in the Chair. 



Thirty-nine persons present. 



The Chair announced the death of Alfred Wlielen, November 18,1 907 ; 

 William Potts, July 29, 1908, members, and of William K. Brooks, a 

 correspondent, November 12, 1908. 



In association with the Biological and Microscopical Section, Mr. 

 Charles S. Boyer made a communication on the synonymy and 

 relationships of Surirella and described a new species of diatom from 

 the miocene deposits of Barbadoes, for which he proposed the name 

 Cymatopleura Shulzi. 



Dr. Thomas S. Stewart spoke of the bacillus of syphilis and sug- 

 gested methods of staining. 



Mr. Frank J. Keeley exhibited slides illustrating secondary 

 crystallization of early Hmestone and showing the Brownian motion of 

 smoke particles on dark-ground illumination. 



Dr. Henry A. Pilsbry spoke of the geographical distribution of 

 Strohilops. 



The following papers on the report of the Publication Committee 

 were accepted for publication: 



"On the Cicindelinae of Angola." By F. Creighton Wellman, M.D., 

 and Walther Horn, M.D. (September 26). 



"Remarks on Prof. Chamberlin's Revision of North American 

 Lycosidae." By Thomas H. Montgomery (October 27). 



Sydney L. Wright, Jr., was elected a member. 



The following were ordered to be printed : 



