Decembeb 16, 1910] 



SCIENCE 



857 



THE PALEONTOLOGWAL SOCIETY 



The second annual meeting of the society 

 ■will be held in the Carnegie Museum, Pitts- 

 burgh, Pa., beginning Wednesday morning, 

 December 28, at 10 o'clock. President Charles 

 Schuchert wiU preside over the meeting. The 

 program will include a conference on the 

 Criteria in Paleozoic Paleogeography, with 

 the following subjects for discussion : 



The Nature of Tertiary and Modern Marine 

 Faunal Barriers and Currents, by William H. 

 Dall. 



The Value of Floral Evidence in Marine Strata 

 as indicative of Nearness of Shores, by David 

 White. 



Are the Fossils of Dolomites indicative of Shal- 

 low, Highly Saline and Warm Seas? by Stuart 

 Weller. 



Were the Habitats of Reef-making Tabulata and 

 Tetracoralla similar to those of Living Hesa- 

 coralla? by T. Wayland Vaughan. 



The Stratigraphic Significance of the Wide Dis- 

 tribution of Graptolites, by Rudolph Ruedemann. 



The Stratigraphic Significance of Bryozoa, by 

 Edward 0. Ulrich. 



The Stratigraphic Significance of Braehiopoda, 

 by Charles Schuchert. 



The Stratigraphic Significance of Ostracoda, by 

 R. S. Bassler. 



The Relation of the Paleozoic Arthropods to 

 the Strand Line, by John M. Clarke. 



The Paleogeographic Significance of Land Ver- 

 tebrates in Paleozoic Strata, by S. W. Williston. 



MECHA'NWAL SCIENCE AND ENGINEERING 

 IN THE AMERICAN ASSOCIATION 



There have been promised the following 

 papers for Thursday morning, December 29 : 



A. H. Blanchard: {a) "Comparison of English 

 and American Trafiic Regulations," (6) "Rela- 

 tions between Modem Trafiic and the Alignment 

 and Profile of Highway Design," (c) "The Pres- 

 ent Status of the Use of Bituminous Materials in 

 Road Construction in the U. S." 



A. H. Blanchard and I. W. Patterson : " Meth- 

 ods of taking Trafiic Census on Highways." 



A. N. Johnson: "The Science of Highway 

 Building." 



E. F. Chandler: "The Amount of Stream Flow 

 in the Northern Prairies." 



F. W. Mc^Nair: " Consequence of the Solution 

 of Air in a Hydraulic Air Compressor." 



The program for Friday will be a sym- 

 posium on aeronautics and related subjects. 

 An appreciation of Dr. Chanute and his work 

 by one or two members of the section will be 

 given. The papers thus far promised are as 

 follows : 



J. Ansel Brooks: "A Study of Aviation in 

 Europe during the Summer of 1910." 



R. W. Wilson: "Determination of the Alti- 

 tudes of Aeroplanes by Triangulation." 



S. P. Ferguson : " An Indicator for Determin- 

 ing the Efficiency of Aeroplanes." 



C. H. Peabody : " Technical Education in Aero- 

 nautics." 



W. J. Humphreys : " Permanent Winds." 



On Wednesday afternoon, the section will 

 meet in joint session with Section B to hear 

 the vice-presidential addresses of Professor J. 

 F. Hayford and Professor L. A. Bauer. Other 

 papers than those listed are partially promised 

 and still others will be brought in between 

 now and the dates of the meetings of the sec- 

 tion. 



THE CONVOCATION WEEK MEETINGS OF 

 SCIENTIFIC SOCIETIES 



The American Association for the Advance- 

 ment of Science and the national scientific 

 societies named below will meet at Minneapo- 

 lis, during convocation week, beginning on De- 

 cember 27, 1910. 



American Association for tlie Advancement of 

 Science. — Retiring president. Dr. David Starr 

 Jordan, of Stanford University; president. Pro- 

 fessor A. A. Michelsou, University of Chicago; 

 permanent secretary, Dr. L. 0. Howard, Smith- 

 sonian Institution, Washington, D. C. 



Local Executive Committee. — Wilbur F. Decker, 

 chairman; Frederic E. Clements, secretary; Leroy 

 J. Boughner, Frederic B. Chute, James F. Corbett, 

 James F. Ells, Wallace G. Nye, Henry F. Naeh- 

 trieb, Edward E. Nicholson, Francis C. Shenehon, 

 Albert F. Woods, Frederick J. Wulling. 



Section A — Mathematics and Astronomy — 

 Vice-president, Professor E. H. Moore, University 

 of Chicago; secretary. Professor G. A. Miller, 

 University of Illinois, Urbana, 111. 



Section B — Physics. — Vice-president. Dr. E. B. 

 Rosa, Bureau of Standards, Washington, D. C. ; 



