076 



Chase, P. E. Page. 

 Exhibited Diagrams representing Certain Matlicmatical and Astro- 

 nomical Relationship, Orbital Movement, and Planetary Dis- 

 tance 218 



On some Astronomical Ratios favoring the Nebular Hypothesis . . . . 231 

 Certain Relationships between the Velocity of Ijight and the Rotation 

 of Mr. Crooke's New Rotation Apparatus, and with the "Selenium 



Eye." 232 



On the Closeness of Agreement between the Estimates of Solar Radi- 

 ating Force Derived from Crooke"s Radiometer and the Nebular 



Hypothesis , 283 



On Intermercurial bodies revolving arountl the Sun 290 



On Swedish Statistics of Color Blindness 339 



Experimental Results Illustrating his 6th, 7th and 10th fundamental 

 propositions of Central Force 394 



Cope, E. D. 



Fossil Remains of a Dinosaur 386,391 



Scratched Figures on Coal Shales 391 



Vertebral Column ot an Elasmosaurus 393 



New Species of ■Mastodon 394 



Cast of the lirain Cavity of Corypliodon Elephantopus 395 



Cast of the Cranial Cavity of a Procamelus Occidentalus 666 



Cresson, C. M. 



Record and analysis of the Continental Hotel Artesian Well 181 



On lOxperiments with Wooten's Method of Utilizing Coal Dust . ... 283 



on Impure Water taken from a well near Trenton 291 



Davenport, S. 



On the Eucalyptus trees of Australia 278 



Frazer, p., Jr. 



On Possible Effects on Species and Genera froni Variations in the 

 proportionate percentage of the chemical elements of their physi- 

 cal constitution, &c 235 



Observations at a visit to the Bamfordville Zinc Works in Lancaster 



Co., Pa 292 



On the Upward Percolation of Marsh Water 2!I2 



On a New Compass devised by Major Brooks 662 



Genth, F. a. 



On his discovery of a new mineral, the Telluride of Mercury 188 



Hall, C. E. 



List of genera and species of Fossils determined by him during 1874 



and 1.S75 . . . for the Geological Survey 182 



Hart, J. 



On the "Death Mask of Shakespeare." 196 



Houston, E^ J. 



On the so-called "New Force." .53,217 



On the Standing of the Mercury, February 5th, in the High School 

 Barometer 206 



On Observations made while using Pluckcr Tubes for obtaining the 



Hydrogen Spectrum 233 



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



On some Experiments with a 19" Frcsnel Lens and a Crooke's Radi- 

 ometer 279 



Description of a new Telegraphic Machine called a" Pncumo-dynamic 

 Relay Sounder." 286 



On the Vena Contracta 290 



