CONTENTS. 



Page 



Art. XXVIII. — Effects in Mokuaweoweo of the Eruption 



of 1014; by H. O. Wood 383 



XXIX. — The Composition of Natural Bornite; by E. T. 



Allen 409 



XXX. — Further Study of the Interference of Reversed 



Spectra; by C. Bartjs ". 414 



XXXI. — The Stratigraphic Position of the Hillsboro Sand- 

 stone; by C. S. Prosser 435 



XXXII. — Bottom Control of Marine Faunas as Illustrated 



by Dredging in the Bay of Fundy; by E. M. Kindle.. 449 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physios — Manufacture of Gasoline and Benzene-Toluene from 

 Petroleum and Other Hydrocarbons, W. F. Rittman, C. B. Dutton and 

 E. W. Dean: Bapid Method for the Determination of Copper and Iron, 

 G. Edgar, 462. — Colorometric Determination of Acetylene and its Applica- 

 tion to the Determination of Water, E. B. Weaver: Delicate Test for 

 Copper, W. G. Lyle, L. J. Curtman and J. T. W. Marshal, 463. — 

 Theory of Magnetism, E. Gans, 464. — Carriers of the Spectra of Hydro- 

 gen, J. Stark: Primary X-Bay Spectra of Iodine and Tellurium, M. 

 Siegbahn, 465. — Distribution of Intensity in Broadened Spectrum Lines, 

 J. W. Nicholson and T. B. Merton: Magnetic Declination in the United 

 States for January 1, 1915, D. L. Hazard, 466. 



Geology— Wisconsin Geological and Natural History .Survey, E. A. Birge: 

 Canada, Department of Mines, 467. 



Miscellaneous Scientific Intelligence — The National Academy of Sciences, 

 469.^The Northwest and Northeast Passages, 1576-1611, P. F. Alexan- 

 der : University of Washington, Bureau of Industrial Besearch : Summer 



* "Assembly in Science " at the Scripps Institution, La Jolla, California, 

 471. 



Obituary — J. W. Judd: H. C. Jones: E. Gerard: E. Heckel: J. W. 

 Bj chard, 472. 



