675 



Strong, "William Page. 

 Obituary notice of Horace Binney 1 



Trowbridge, David 



On the Atmospheres of the Sun and Planets 290, 327 



Walter, T. U. 



On the erroneous nature of certain statements respecting the founda- 

 tions of the Great Tower of the Public Buildings, corner of Broad 

 and Market Streets 337 



WooTTEN, John E. 



A Combination oi Apparatus by which ordinary Anthracite coal- 

 waste from the Dirt-banks of the Mines can be successfully and 

 profitably burned in the furnaces of stationary and locomotive 

 boilers 214 



Communications not yet Published. 



Blasius, Wm. 



The Progress in Meteorology in the last 25 years 394. 395 



Dewees, John H. 



Notes on the results of a survey of the Iron Ore Beds of Pennsylvania, 395 



Frazer, p. 



Communication from Mr. Beyton Smith, 232 



GUTERBRIDGE, AlEX. E., Jr. 



On the Wonderful divisibility of Metallic Gold 390 



HONEYMAN, Mr. 



On the "Varieties of Transported Boulders on the Nova Scotia 



Shore 237,664 



Verbal and Short Communications. 



Blodget, Tatham, Price. 



On the Clays and Gravels underlying the City 480 



Blodget, L. 



On the Act of Congress ordering a new Arctic Expedition 383, 387 



Briggs, R. 



On the Need of Circumspection in offering and decreeing Premiums 

 to Inventors before continuous and complete Success 289 



Briggs and Houston. 



On the Vena Contracta ' 290 



On Results obtained with a Crooke Radiometer in a Geissler Tube . . 237 



Brttton, J. B. 



On some Specimens of Artificial Fuel manufactured from the Peat 



Bogs near Syracuse, N.Y 381 



On some Specimens of Lignite and Peat and Preserved Fuel from 



Peat manufactured in N. Y ... 664 



Chase, P. E. 



Japanese translation of Dr. Henry Hartshorne's book entitled "Es- 

 sentials of the Practice of Medicine." 180 



Certain Conclusions deducible from Curves of Rainfall in North 



America 182 



On a Paper of Dr. D. Ast, on Observations on the Spectra of Metals in 

 the Electric Current 196 



