RECORDS OF MEETINGS 193 



the limbs of primitive amphibians, had suggested the following provis- 

 ional homologies : 



Crossopteryy ian Tetrapod 



"Infraclavicle" = Clavicle 



"Clavicle" (of Parker) = Scapula 



"Supraclavicle" = Cleithrum 



"Coracoid" (hypocoracoid) = Coracoid (or precoracoid?) 



"Scapula" (hypercoracoid) = Humerus 



Proximal basals = Eadius and ulna 



Distal basals = Carpals 



Eadials = Metacarpals and phalanges 



Dermal rays (derived from = Nails, scales 

 scales) 



The reduction and loss of the post-temporal may have accompanied 

 the freeing of the shoulder girdle from the skull. These views differ 

 radically from those of Owen, Parker and Gegenbaur. The paired tins 

 of Sauripteris were the only ones known that seemed to foreshadow even 

 in a remote degree the paired limbs of the Tetrapoda. In the pelvic fin 

 of Eusthenoptcron, another crossopterygian of the Tipper Devonian, dif- 

 ferential evolution of the basals and radials had brought about certain 

 remote resemblances to the tetrapod limb. The ilium of tetrapods ap- 

 peared to be a neomorph. 



The Section then adjourned. 



L. Hussakof, 



Secretary. 



SECTION OF ASTKONOMY, PHYSICS AND CHEMISTRY. 



20 February, 1911. 



By permission of Council, no meeting was held. 



Edward J. Thatcher, 



Secretary. 



SECTION OF ANTHROPOLOGY AND PSYCHOLOGY. 



27 February, 1911. 



Section met in conjunction with the American Ethnological Associa- 

 tion at 3:15 p. m., Gen. Joseph Grant Wilson presiding. 



