498 Miscellaneous Intelligence. 



IV. Miscellaneous Scientific Intelligence. 



1. The National Academy held its semi-aunual session in 

 Philadelphia, commencing with the 12th of November. The fol- 

 lowing is a list of the papers presented : 



W. Gibbs and EL A. Hare: On the Results of the Systematic study of the 

 Action of definitely related Chemical Compounds upon Animals. 



B. A. Gould : On the new Prototypes of the Kilogram and the Meter. 



James Hall : Present state of our knowledge in reference to a revision of the 

 Genera of Brachiopoda for the Palaeontology of New York, vol. viii. 



George F. Barker: On Zinc Storage Batteries. 



A. Hall : On Saturn and its Ring. 



S. P. Lan&let : On the Economy of Energy in the Glow-worm. 



0. N. Rood : On Photometry of Colored Light. 



TV. Gibbs : On certain Pyrophosphates. 



E. D. Cope: On the Yertebrata of the Miocene of the Cypress Hills of Canada. 



TV. K. Brooks : On the Early stages of Echinoderms. 



A. A. Michelson : On Relative Wave-lengths. 



E. C. Pickering : On the Spectrum of Zeta Ursse Majoris. 



J. A. Ryder:* On the Persistence and meaning of the Bi-concave centrum of 

 the Vertebras of Yertebrates. 



Theodore Gill : On the peculiar Ordinal modification as exemplified by Fishes 

 of the family Halisaurida?. 



TV. H Brewer : On the Heredity of Acquired Characters. 



Arthur Michael : On the " Positive-negative " Hypothesis in its application to- 

 Organic Chemistry. 



S. Newcomb: On the Results of the Transits of Venus observed in 1761 and 

 1769; On the Theory of Cosmical Temperature. 



J. TV. Powell: The Desert Ranges. 



H. C. Wood: On Hypnotic Cases without Suggestion. 



J. S. Newberry: On the Laramie Group. 



0. C. Marsh : On the Skull of the gigantic Ceratopsida? ; American Mesozoic- 

 Mammals. 



2. New Bulletins of the IT. S. National Museum, published by 

 the Smithsonian Institution in 18S9. — No. 34. The JBatrachia of 

 North America, by E. D. Cope. 525 pp. — A complete treatise, 

 illustrated by 86 plates, besides many cuts in the text. 



No. 35. Bibliographical Catalogue of the described Trans- 

 formations of N. A. Lepidoptera, by Henry Edwards. 147 pp. 



No. 36. Contributions to the Natural History of the Cetaceans; 

 a Review of the Family Delphinidce, by Frederick W. True. 

 191 pp. Illustrated by 47 plates. 



No. 37. Preliminary Catalogue of the shell-bearing Marine- 

 Mollushs and JBrachiopods of the /Southeastern coast of the United 

 States, by Wm. H. Dall. 221 pp., Illustrated by 74 plates. 



obituary. 

 George H. Cook. — The death of Professor Cook, State Geol- 

 ogist of New Jersey and Vice-President of Rutgers College at 

 New Brunswick, New Jersey, on the 22d of September last, is 

 announced on page 336. His successive annual Geological Re- 

 ports of the State of New Jersey, continued for the past twenty- 



* Presented by Mr. T. Gill. 



