

CONTENTS. 



Page 



Art. XVIII. — Entelodonts in the Marsh Collection ; by E. 



L. Troxell (with Plate III) 243 



Art. XIX. — Notes on Hawaiian Petrology; by S. Powers, 256 



Art. XX. — On Ticholeptus Rusticus and the Genera of Ore- 



odontida? ; by F. B. Loomis 281 



Art. XXI. — The Stratigraphy and Geologic Relations of the 



Paleozoic Outlier of Lake Timiskaming; by'G. S. Hume 293 



Art. XXII. — A Fossil Sea Bean from Venezuela; by E. W. 



Berry * 310 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics — Melting Points and Thermoelectric Behav'or of Lead 

 Isotopes. T. W. Richard and N. F. Hall : Intermolcular Transpositions 

 of Atoms of the Same Kind. Ton Hevesy and Zechmeister, 314. — Action 

 of A qua Regis on Gold-Silver Alloys in the Presence of Ammonium Salts, 

 W". B. Pollard : Probably Existence of Deposits of Soluble Potash Salts 

 in the United States, H. I). Ruhm, 815. 



Obituary— J. P. Iddixgs. 316. 



Ten-volume Ixdex to volumes XLI-L, ready in January. Price, in advance, 

 two dollars. 



