198 PKOCEEDINGS OF THE PALEONTOLOGICAL SOCIETY 



i^age 

 Paleozoic section of the lower Mackenzie River; by E. M. Kindle. 211 

 Echinoderms of the Iowa Devonian [abstract] ; by A. O. Thomas. 211 



Session of Wednesday, December 31 213 



Symposium on teaching of paleontology 213 



Continuation of paleontologic papers 213 



Bibliographic studies of the Cambrian [abstract] ; by Charles E. 



Resser 213 



Correlation of the Middle Cambrian of Newfoundland and Great 



Britain [abstract] ; by B. F. Howell 214 



Cambrian formations and faunas of the upper Mississippi Valley ; 



by E. O. Ulrich 214 



Trilobites as ancestors [abstract] ; by Percy E. Raymond 214 



Origin of the "beach rock" (Coquina) at Loggerhead Key, Tortu- 



gas [abstract] ; by Richard M. Field 215 



Foraminiferal fauna of the By ram marl [abstract] ; by Joseph A. 



Cushman 215 



Stratigraphy of the Virgin Islands of the United States and of 



Culebra and Vieques Islands [abstract] ; by Thomas Wayland 



Vaughan 216 



Geologic reconnaissance in Santo Domingo [abstract] ; by C. 



Wythe Cooke 217 



Notes on the teaching of paleobotany ; by Marion D. Weston 220 



Method of appearance of additional arms on increasing age in 



Caryocrinites [abstract] ; by A. F. Foerste 220 



Status and limits of the Paleocene [abstract] ; by W. D. Matthew 221 



Study of the life processes in fossils ; by R. S. Bassler 222 



Sponges of the Middle Cambrian ; by Charles D. Walcott 222 



Inorganic evidences of disconformities in limestone; by Richard 



M. Field 222 



Minutes- of sectional meeting on vertebrate paleontology 222 



Further discussion of the ecological composition of the Eagle 



Creek flora [abstract] ; by Ralph W. Chaney 222 



New mounts in the Princeton Geological Museum [abstract] ; by 



William J. Sinclair. . . .' 223 



Study of the entelodonts [abstract] ; by Edward L. Troxell 223 



Mounted skeleton of Moschops capensis Broom [abstract] ; by 



William K. Gregory 223 



Small mammals in the Marsh Collection at Yale University [ab- 

 stract] ; by Edward L. Troxell 223 



Tertiary artiodactyls from the Marsh Collection [abstract] ; by 



Richard S. Lull * 224 



Oligocene Equidfe in the Marsh Collection [abstract] ; by John P. 



Buwalda 224 



Pawnee Creek beds of Colorado [abstract] ; by F. B. Loomis 224 



New specimen of the Pleistocene bear, Arctotherium from Texas 



[abstract] ; by W. D. Matthew 224 



Northi^otherium shastense, a Pleistocene ground sloth of North 



America, with remarks on the Megalonychidse ; by Chester Stock 225 



