RECORDS OF MEETINGS . 405 



The Eecording Secretary then announced the following deaths : 

 Julius Bien, an active member for 33 years, 

 Professor Friedrich Kohlrausch, a corresponding member for 11 



years, 

 Edward Mitchell, an active member for 33 years. 

 The Academy then adjourned. 



Edmund Otis Hovey, 



Recording Secretary^ 



SECTION OF GEOLOGY AND MINEEALOGY. 



February 7, 1910. 



The Section met at 8 :20 p. m., Vice-President George F. Kunz pre- 

 siding. 



The minutes of the last meeting of the Section were read and approved. 

 The following programme was then offered : 

 Elvira Wood, On the Phylogeny of Certain Cerithiid^^ 



Henry Fairfield Osborn, The Epidermal Covering of Trachodon. 

 Walter Granger, Tertiary Beds of the Wind Eiver Basin. 



W. D. Matthew, Climate and Evolution. Preliminary Ob- 



servations UPON THE Geographic Dis- 

 persal of Land Animals in its Eelation. 

 TO Progressive Climatic Change. 

 The Section then adjourned. 



Charles P. Berkey,. 



Secretary. 



SECTION OF BIOLOGY. 



February 14, 1910. 



Section met at 8:15 p. m., Vice-President Charles B. Davenport pre- 

 siding. 



The minutes of the last meeting of the Section were read and approved. 

 The following programme was then offered: 



Charles B. Davenport, Variability of Land Snails (Ceeion) in thb 



Bahama Islands with its Bearing on the 

 Theory of Geographical Form Chains. 



W. K. Gregory, Application of the Quadrate-Incus Theory 



TO the Conditions in Theridont Eeptiles 

 AND the Genetic Eelations of the Latter 

 to the Mammalia. 



