L\a^-^% 



PROCEEDINGS 



OF THE I 



AMERICAN PHILOSOPHICAL SOCIETY 



HELD AT PHILAUELPHiA 

 FOR PROMOTING USEFUL KNOWLEDGE 



Vol. XLVII. January-April, 1908. No. 188. 



CONTENTS. 



Stated Meeting, January j, igo8 i 



Stated Meeting, January I J 2 



Tumor Growth and Tissue Growth. By Leo Loeb 3 



Stated Meeting, February 7 12 



Stated Meeting, February 21 12 



Stated Meeting, March 6 13 



Stated Meeting, March 20.... 13 



Stated Meeting, April j 13 



General Meeting, April 2J, 24 and 2j 13 



The Law of Oresme, Copernicus and Gresham. By Thomas Will- 

 ing Balch 18 



Art and Ethnology. By Edwin Swift Balch 30 



The Brain of Rhinochimaera. By Burt G. Wilder 37 



Observations Regarding the Infliction of the Death Penalty by 



Electricity. By Edw. Anthony Spitzka 39 



Preliminary Note on the Brains of Natives of the Andaman and 



Nicobar Islands. By Edw. Anthony Spitzka 51 



Determination of Dominance in Mendelian Inheritance. By 



Charles B. Davenport 59 



The Santa Cruz Typotheria. By William J. Sinclair 64 



Notes on Some Chilean Copper Minerals. By Harry F. Keller.. 79 

 Progress of the Demarcation of the Alaska Boundary. By O. H. 



TlTTMANN 86 



The -Most Primitive Living Representative of the Ancestors of the 



Plant Kingdom. By George T. Moore 91 



The Comparative Leaf Structure of the Sand Dune Plants of Ber- 

 muda. By John W. Harshberger 97 



Solution of Algebraic Equations in Infinite Series. By Preston A. 



Lambert n i 



Stated Meeting, May i 134 



Stated Meeting, May 75 134 



The Origin of Bombshell Ore. By H. M. Chance 135 



"'■ PHILADELPFilA 

 THE AMERICAN PHILOSOPHICAL SOCIETY 



104 South Fifth Street 

 1908 



