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EDITORIAL COMMITTEE: S. NEWCOMB, Mathematics; R. S. WOODWARD, Mechanics 

 E. C. PICKERING, Astronomy; T. C. MENDENHALL, Physics; R. H. THURSTON, 

 Engineering; IRA REMSEN, Chemistry; JOSEPH LE CONTE, Geology; W. M. DAVIS, 

 Physiography; O. C. MARSH, Paleontology; W. K. BROOKS, Invertebrate Zoology; C. 

 HART MERRIAM, Vertebrate Zoology; N. L. BRITTON, Botany ; HENRY F. OSBORN, 

 General Biology; H. P. BOWDITCH, Physiology; J. S. BILLINGS, Hygiene; J. McKEEN 

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The contents of the current number, May 3rd, are as follows : — 



National Academy of Sciences. Report of the Watson 

 Trustees on the Award of the Watson Medal to Seth C. 

 Chandler, S. Newcomb, B. A. Gould, A. Hall. 



Summary of Conclusions of a Report by Drs. D. H. Bergey, 

 S. Weir Mitchell, and J. S. Billings upon "The Com- 

 position of Expired Air and its effects upon Animal Life ". 



American Metrological Society. J. K. R. 



The International Mathematical Congress. George Bruce 

 Halsted. 



Current Notes on Physiography (V.). W. M. Davis. 



Current Notes on Anthropology (VII.). D. G. Brinton. 



James D. Dana. 



Correspondence : 



The Distribution of Sledges, etc. o. T. Mason. 



Scientific Literature : 



Geille's Life of Ramsay. Joseph Le Conte. IVIcIVIurrich's In- 

 vertebrate Morphology. A.S.Packard. Vertebrate Zoology. 



C. H. M. Spalding's Botany. W. P. Wilson. 



Notes and News : 



Fossil Vertebrates of Argentina; Variation in Crabs; Re- 

 gression and Organic Stability; General. 



Societies and Academies. 



American Geographic Society; The Biological Society of 

 Washington: The Academy of Science of St. Louis. 



Scientific Journals: 



The Botanical Gazette. 



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