T K A N S A C T IONS 



AMERICAN PHILOSOPHICAL SOCIETY, 



HELD AT LMIIIADKLPIIIA, 



FOR PROMOTING USEFUL KNOWLEDGE. 



VOL. XIII. NKW SHIM ES. 



PART I. 



Article I. — On California Mosses. By Leo Lesquereux, .... 

 Article 11. — On the Mathematical Probability of Accidental Linguistic Resem- 

 blances. By Pliny Parle Chase, A.M., .... 

 Article III. — On the Comparative Etymology of the Toruba Language. By 



Pliny Parle Chase, A.M., 



Article IV.- — Thoughts on the Influence of Ether in the Solar System. By 

 Alexander WilcocJcs, MI)., 



Article V. On New Mosses. By Thomas P. James, 



Article VI.- On tjie Numerical Relations of Gmvity and Magnetism. By 



Pliny Parle Chase, A.M., 



Page I 



73 

 " 105 



" 117 



|) i) i I a ti c I p 1) i a : 

 PUBLISHED .11 Y THE SOC1 ETY, 



AND FOR SALE UY 



BLANCHAED & DBA, PHILADELPHIA ; 

 N. TEUBNEE & CO., 60 PATBE1STOSTBE ROW, LONDON. 



I' II I N T E I) II V B II K II M A N & (!<). 



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