May 1, 1903.] 



SCIENCE. 



703 



SCIENTIFIC JOURNALS AND ARTICLES. 



The Bulletin of the Torrey Botanical Club 

 for February contains a paper ' On Atavistic 

 Variation in (Enothera cruciata' by Hugo 

 de Vries ; ' Nova Ascomycetum Genera Spe- 

 ciesque,' by Frederic E. Clements ; ' New 

 Species of Fungi,' by Charles H. Peck; 'A 

 Fossil Petal and a Fossil Fruit, from the Cre- 

 taceous (Dakota Group) of Kansas,' by Ar- 

 thur Hollick ; ' Notes on Antillean Pines, v^ith 

 Description of a New Species from the Isle 

 of Pines,' by W. W. Eowlee; 'The Polypor- 

 acese of North America, II., the Genus Pyro- 

 polyporus/ by William Alphonso Murrill; and 

 the usual instalment of the ' Index to Recent 

 Literature Eelating to American Botany.' 

 The March number consists mainly of ' Stud- 

 ies in Plant Hybrids: The Spermatogenesis 

 of Hybrid Cotton,' by William Austin Can- 

 non, but includes a biographical sketch of 

 Dr. Timothy Field Allen by N. L. Britton; 

 ' Studies in the Asclepiadacese — YTI., A New 

 Species of Vincetoxicum from Alabama,' by 

 Anna Murray Vail ; ' A New Species of Wald- 

 steinia from Idaho,' by C. V. Piper; and the 

 ' Index to Eecent Literature.' 



The February number of Torreya contains 

 ' Notes on Southern Ferns,' by L. M. Under- 

 wood; ' Trichomanes Petersii Found Anew,' 

 by A. B. Seymour ; ' A Unique Climbing 

 Plant,' by Eoland M. Harper; 'An Unde- 

 scribed Eleocharis from Pennsylvania,! by 

 N. L. Britton, and 'A Key to the North- 

 American Species of Stropharia,' by F. S. 

 Earle. Carlton 0. Curtis reviews Kraemer's 

 ' Course in Botany and Pharmacognosy,' and 

 this is followed by the 'Proceedings of the 

 Club ' and news items. 



Torreya for March includes ' Vital Persist- 

 ency of Agave Americana/ by S. B. Parish; 

 ' A Key to the North- American Species of 

 Lentinus — ^I.,' by F. S. Earle ; ' The Pubes- 

 cence of Species of Astragalus,' by Francis 

 Eamaley ; ' Insect Visitors of Scrophularia,' 

 by T. D. A. Coekerell; and ' Some Interesting 

 Hepaticse from Maine,' by Caroline Coventry 

 Haynes. C. C. Curtis reviews MacDougal's 



' Influence of Light and Darkness upon 

 Growth and Development,' and the number 

 is completed by the ' Proceedings of the Club ' 

 and news items. 



SOCIETIES AND ACADEMIES. 



THE NATIONAL ACADEMY OF SCIENCES. 



The following papers were either read or 

 presented by title at the stated session of the 

 National Academy of Sciences held at Wash- 

 ington on April 21, 22 and 23 : 



Henky p. Osboen : ' An Eatimate of the Weight 

 of the Skeleton in the Sauropoda, or in the 

 Sauropodous Dinosaurs.' 



Henry F. Osborn : ' New Characters of the 

 Skulls of Carnivorous and Herbivorous Dinosaurs.' 



Henry F. Osborn : ' Models illustrating the 

 Evolution of the Amblypoda, also of the Dinosaur 

 Diplodocus, together with a Theory as to the 

 Habits of the Sauropod^.' 



George F. Barker: 'Radioactivity of Thorium 

 Minerals.' 



J. M. Crafts : ' The Law of Catalysis in Con- 

 centrated Solutions.' 



J. M. Crafts : ' The Standardization of Thermo- 

 metric Measurements.' 



George E. Hale : ' The Rumford Spectro- 

 heliograph of the Yerkes Observatory.' 



Lewis Boss : ' The Determination of Standard 

 Right-ascensions free from the Personal Equation 

 for Star-magnitude.' (With stereopticon illustra- 

 tions.) 



R. A. Harris : ' On the Semi-diurnal Tide of the 

 Northern Part of the Indian Ocean.' (Introduced 

 by Cleveland Abbe.) 



Arthur L. Day : ' The Melting Point of a Sim- 

 ple Glass.' (Introduced by G. P. Becker.) 



Theodore Gill: 'Biographical Memoir of J. E. 

 Holbrook.' 



George P. Barker : ' Biographical Memoir of 

 Matthew Carey Lea.' 



S. P. Emmons : ' Biographical Memoir of Clar- 

 ence King.' 



Jeffries Wyman : ' Biographical Memoir of A. 

 A. Gould.' (Read by W. H. Dall.) 



Charles S. Hastings : ' Biographical Memoir 

 of James E. Keeler.' 



Carl Baeus: 'The Diffusion of Vapor into 

 Nucleated Air.' 



H. P. Bowditch : ' Biographical Memoir of 

 Theodore Lyman.' 



Alexander Agassiz : ' The Nomenclature of the 

 Topography of the Bottom of the Oceans.' 



