CONTENTS. IX 



WILLIAM NIVEN. 



Eecent Archeological Explorations in the State of Guerrero, Mexico 



(public lecture) 317 



H. F. OSBOEN. 



A Paleontological Reconaissance 364 



Notes on Mammalian Paleontology 306 



H. C. PARKER. 



A Universal Method of Measuring the Electric Current 71 



Recent Geographical Explorations in the Canadian Rockies, and the 

 First Ascent of Mount Lefroy (public lecture) 375 



THOMAS R. PRICE. 



Pope's System of Caesura 330 



The Constructive Plan of Ibsen's Cataline 305 



H. G. PROUT. 



The Egyptian Soudan, its Recent History and the Campaign of 1896 



(public lecture) 138 



Discovery and Care of the Minor Planets (public lecture) 305 



November Meteoric Shower 71 



Remarks on prints made from negatives of the Moon 318 



J. K. REES, HAROLD JACOBY and H. S. DAVIS. 



Variation of the latitude and determiniation of the Constant of Abera- 



tion 318 



HEINRICH RIES. 



Mineralogical Notes 223 



J. J. RILEY. 



The Guano Deposits of the Islands of the Southern Pacific, and their 



Prehistoric Remains 371 



J. J. STEVENSON. 



A Talk on Coal 188 



International Congress of Geologists at Saint Petersburg 365 



OLIVER S. STRONG. 



The Summer at the Marine Biological Laboratory at Wood's Hole, 



Mass 364 



