Subscription Price, $4.00 per Annum; to Members $1.00. 



Entered at the Philadelphia Post-Office as second-class matter, 



PROCEEDINGS 



OF THE 



AMERICAN PHILOSOPHICAL SOCIETY, 



HELD AT PHILADELPHIA, lOR PROMOTING USEFUL KNOWLEDGE. 



Vol. x'xII. April. 1885. PART II. No. 118. 



TABLE OF CONTENTS. 



PAGE. 



On the Language and Ethnologic Position of the Xinca Indians of 



Guatemala. By Daniel O. Brinton 89 



Stated Meeting, January 2, 1885 08 



Stated Meeting, January 16, 1885 101 



The limits ot stability of nebulous Planets, and the consequences re- 

 sulting from their mutual relations. By Daniel Kirkwood 104 



Notes on the Geological Structure of Tazewell, Russell, Wise, 

 Smyth and Washington Counties of Virginia. By John J. 

 Stevenson {with map) 114 



Some Notes Respecting Metamorphism. By John J. Stevenson IGl 



Twelfth Contribution to the Herpetology of Tropical America. By 

 E. D. Gope 167 



The Lineal Measures of the Semi-Civilized Nations of Mexico and 

 Central America. By Daniel O. Brinton 194 



An Experiment in Weather Forecast. By Pliny Earle Chase 207 



Note on Cosalite, Alaskaite and Beegerite. By George A Koenig, 211 



The Remarkable Sun -glows in the Falls of 1883 and 1884. By Wm. 

 Blasius » 218 



A convenient Device to be applied to the Hand Compass. By Per- 

 sifor Frazer 216 



Published for the American Philosophical Society, 



BY 



McCALLA & STAVELY, 

 NOS. 237-9 DOCK STREET PHILADELPHIA. 



