124 
The American Geologist 
ogist. 
FelTuary, 1905 
One 
" 
Rare 
Abundant 
Not uncomon 
Two 
Rare 
Rare 
Rare 
Several 
One 
Several 
Rare 
Four 
Rare 
Abundant 
Abundant 
Several 
Common 
One 
" 
Fragment 
Two 
Common 
Common 
Abundant 
Xot common 
Rare 
Rare 
Six 
One 
" semistriata Williamson. 
" squamosa (Montagu). 
" striata d' Orbigny. 
" striatopunctata Parker & Jones, 
sulcata (Walker & Jacob). 
Miliolina auberiana d' Orbigny. 
bicornis (Walker & Jacob) 
" cuvieriana (d' Orbigny). 
" linnaeana (d' Orbigny). 
" oblonga (Montagu). 
" pulchella (d' Orbigny). 
" seminulum (Linne). 
" tricarinata (d' Orbigny). 
" trigonula Lamarck. 
" venusta (Karrer). 
Nodosaria obliqua (Linn6). 
" vertebralis (Batsch). 
Nonionina depressula (Walker & Jacob), 
scapha (Fichtel & Moll). 
" stelligera d' Orbigny. 
" umbilicatula (Montagu). 
Polymorphina communis d' Orbigny. 
" complanata d' Orbigny. 
" compressa d' Orbigny. 
" lactea (elongate Var. W & J) One 
problema d' Orbigny. 
Polystomella crispa (Linne). Not very com. All abund. 
subnodosa (Munster). Rare 
Spiroloculina tenuis (Czjzek). One 
Truncatulina lobatula (Walker & Jacob). Common Not Rare 
variabilis d' Orbigny. " (but less than T. loba- 
" wuellerstorfi (Schwager). One [ tula) Absent. 
RUFUS M Bagg, Jr 
Meeting of Section A of the American Palaeontolcgical 
Society. — The vertebrate palaeontologists had an interesting meet- 
ing at Philadelphia during Convocation week. Prof. Henry F. Os- 
born presided. At the close of the meeting Prof. W. B. Scott was 
elected president and Marcus S. Farr, secretary, for the coming 
year. In all eighteen papers were presented. The three sessions 
held did not furnish time for the reading of all these. President 
Osborn delivered the annual address on "Ten years' progress in 
Mammalian Palaeontology." This is to be published in full. The 
last session was occupied in a discussion on the phylogeny and 
classification of the reptiles. Prof. Osborn opened with a general 
review of the subject, pointing out the gradual development of the 
idea of a double grouping of the reptiles, beginning with Baur's 
phylogeny published in 1889 and continued in the discussions of 
Cope, Woodward, Broom, Noposa, Williston, Boulenger, Osborn and 
McGregor. Prof. Osborn stated that the chief difference among 
writers related to the position of the Ichthyosauria, the Sauro- 
ptergia, and the Testudinata. Prof. Williston spoke especially re- 
garding the plesiosaurs and turtles. He regarded the two groups 
as fundamentally different. The characters distinguishing them 
are aS follows: 
