

CONTEXTS. 



Page 



Art. LIV. — Long Island Sound in the Quaternary Era, 

 with observations on the Submarine Hudson River 

 Channel; by James D. Dana. (With Plate X) 425 



LV. — The Preservation and Accumulation of Cross-infer- 

 tility; by John T. Gulick 437 



LVI. — The Deformation of Iroquois Beach and Birth of 



Lake Ontario ; by J. W. Spencer 443 



LVII. — Experiments upon the Constitution of the Natural 



Silicates; by F. W. Clarke and E. A. Schneider 452 



LVIII. — Eudialyte and Eucolite, from Magnet Cove, Arkan- 

 sas; by J. Francis Williams 457 



LIX. — Prediction of Cold-waves from Signal Service Weath- 

 er Maps ; by T. Russell 463 



LX. — Peculiar method of Sand-transportation by Rivers ; by 



James C. Graham 476 



LXI. — Note on the Cretaceous rocks of Northern California ; 



by J. S. Diller 476 



LXII. — Magnetic and Gravity Observations on the West 

 Coast of Africa and at some islands in the North and 

 South Atlantic ; by E. D. Preston 478 



LXIII. — Fowlerite variety of Rhodonite from Franklin and 



Stirling, N. J.; by L. V. Pirsson 484 



LXIV. — Some Observations on the Beryllium Minerals from 



Mt. Antero, Colorado; by S. L. Penfield 488 



SCIENTIFIC INTELLIGENCE. 



Chemistry and Physics. — Action of Light on Chlorine water, Pedler: Action of 

 Light on Phosphorus, Pedler, 492. — Action of Fluorine on Carbon. 493. — 

 Selenic Acid, Cameron and Macallan: Use of the Platinum Thermometer, 



E. H. Griffiths, 494. — True weight of a cubic inch of distilled water, H. J. 

 Chaney: Heat as a Form of Energy, R. H. Thurston: Sound, Light and Heat; 

 Magnetism and Electricity, J. Spencer, 495. 



Geology and Mineralogy. — Geological and Paleeontological relatious of the Coal and 

 Plant-bearing beds of Palaeozoic and Mesozoic age in Eastern Australia and 

 Tasmania, etc., 0: Feistmantel, 495. — Jurassic Fish-Fauna in the Hawkesbury 

 beds of New South Wales, A. S. Woodward: State of Alpine glaciers in 1889, 



F. A. Forel: ^ordierite as a contact mineral, T. Kikuchi: Sanguinite, a new 

 mineral, 497. 



Miscellaneous Scientific Intelligence. — Deep-sea Dredging in the Pacific, A. Agassiz. 

 497. — National Academy of Sciences : Results of a Biological Survey of the 

 San Francisco Mountain Region and Desert of the Little Colorado, Arizona, 

 498. — Bulletin of the Scientific Laboratories of Denison University, W. G. 

 Tight : Royal Society of Canada : Ostwald's Klassiker der Exakten Wissen- 

 schaften, 499. 



Index to Volume XL. 500. 



