148 



SCIENCE 



[N. S. Vol. LI. No. 1310 



THE PALEONTOLOGICAL SOCIETY OF 

 AMERICA 



The eleventh annual meeting of the Paleontolog- 

 ical Society was held at Boston, Mass., in the 

 Bogers Building of the Massachusetts Institute of 

 Technology, December 30 and 31, 1919, in afSlia- 

 tion with the Geological Society of America. The 

 meeting was the 'bes.t attended in a number of 

 years, and numerous papers on the various 

 branches of paleontology and stratigraphy were 

 presented. An important item on the program was 

 the symposium on the teaching of paleontology 

 which was combined with a similar symposium on 

 the teaching of geology delivered before the joint 

 membership of the Paleontological and Geological 

 Societies. The result of the ballot of officers for 

 1920 was as follows: 



President: F. B. Loomis, Amherst, Massachu- 

 setts. 



First Vice-president: E. C. Case, Ann Arbor, 

 Michigan. 



Second Vice-president: Ralph Arnold, Los 

 Angeles California. 



Third Vice-president: E. M. Kindle, Ottawa, 

 Canada. 



Secretary: B. S. Bassler, Washington, D. C. 



Treasurer: Richard S. Lull, New Haveu, Con- 

 necticut. 



Editor: W. D. Matthew, New York City. 



The address of the retiring president. Dr. R. T. 

 Jackson, was on the subject "Studies in varia- 

 tion and a proposed classification of variants. ' ' 



Following is a list of papers presented. 

 Recent restorations of fossil invertebrates: John 



M. Clarke. 

 The "good use" of the term "fossil": Richard 



M. Field. 

 The presence of Upper Silurian sandstone in Es- 

 sex County, northeastern Massachusetts : A. F. 



FOERSTE. 



Paleontological collections in the vicinity of Bos- 

 ton: Percy E. Raymond. 



The value of Foraminifera in stratigraphic corre- 

 lation: Joseph A. Cushman. 



The intercalation of thecal plates in Eolocystites 

 in connection with the criteria upon which species 

 can 6e distinguished : A. F. Foeeste. 



A revision of the anticosti section: W. H. Twen- 

 hofel. 



The hydrozoan affinities of SerpuUtes Soweriy : W. 

 A-Rmstrong Price. 



The Paleozoic section of the lower Macl'cn.He 

 Miver valley: E. M. Kindle. 



Echinoderms of the Iowa Devonian: A. 0. Thomas. 



Camirian formations and faunas of the upper Miss- 

 issippi valley: E. O. XJlrich. 



Bibliographic studies of the Cambrian: Charles 

 E. Eesser. 



Correlation of the middle Cambrian of Newfound- 

 land and Great Britain: B. F. Howell. 



The Trilobites as ancestors: Percy E. Raymond. 



The foraminiferal fauna of the Byra/m Marl: 

 Joseph A. Coshman. 



Study of the life processes in fossils: R. S. 

 Bassler. 



The method of appearance of additional arms on 

 increasing age in Caryocrinites : A. P. Foerste. 



Origin of the " Beach Sock" ( Coquina) at Log- 

 gerhead Key: Richard M. Field. 



Notes on the teaching of paleobotany : Marian D. 

 Martin. 



Further discussion of the ecological composition of 

 the Eagle Creeh flora: Ralph W. Chaney. 



New mounts in the Princeton Geological Miiseum: 

 Wm. J. Sinclair. 



A study of the entelodonts: Edward L. Troxell. 



A mounted sheleton of Moschops capensis Broom: 

 William K. Gregory. 



Small mammals in the Marsh collection: Edward 

 L. Troxell. 



A new method of restoration for fossil vertebrates : 

 Richard S. Lull. 



The Oligocene Equidm in the Marsh collection of 

 Peabody Museum, Yale University: John P. 



BUWALDA. 



The Pawnee creek beds of Colorado: F. B. Loomis. 

 Nothrotherium Shastense, a Pleistocene ground 



sloth of North America, with remaD'hs on the 



Megalmiychidce: Chester Stock. 

 Tli.e present statiis of the Paleocene: W. D. 



Matthew. 

 A mounted sTceleton of Pteranodon: W. D. 



Matthew. 



SCIENCE 



A Weekly Journal devoted to the Advancement of 

 Science, publishing the official notices and pro- 

 ceedings of the American Association for 

 the Advancement of Science 



Published every Friday by 



THE SCIENCE PRESS 



LANCASTER. PA. GARRISON, N. Yo 



NEW YORK, N. Y. 



Entered in the pott-afficc »t Lancuter. Pa., ai tecond clan mattflt 



