November 9, 1900.] 



SCIENCE. 



727 



' Richard Owen, a paleontologist of some re- 

 pute.' 



It is stated tliat the bicentennial monographs 

 to be written by Yale professors, publication of 

 which will begin early next spring, will num- 

 ber not fewer than twenty-five. President 

 Hadley and Professors Morris, Chittenden and 

 Dr. T. T. Munger, of the Yale corporation, will 

 have charge of the publications. 



The catalogue of the birds of New York 

 State, undertaken by Dr. Marcus S. Farr, has 

 made important progress and the first edition 

 will probably be ready for publication within 

 six months. 



BOOKS RECEIVED. 



The Laws of Gravitation. Memoirs by Newton, Boug- 

 TJEE and Cavendish. Edited by A. Stanley 

 Mackenzie. New York, Cincinnati and Chicago, 

 The American Book Company. 1900. Pp. vii + 

 160. 



The Effects of a Magnetic Field on Radiation. Memoirs 

 by Fabaday, Kerb and Zeeman. Edited by E. 

 P. Lewis. New York, Cincinnati and Chicago, The 

 American Book Company. 1900. Pp. xviii -|- 

 102. 



A Sandbook of Photography in Colors. Thomas 

 BoLAS, Alexandek, a. K. Tallent and Edqae 

 Senior. New York and Chicago. E. and H. T- 

 Anthony & Co. London, Marion & Co. 1900. 

 Pp. 230. 



Studies of Animal Life. Walter Whitney Lucas. 

 Boston, New York and Chicago. D. C. Heath & 

 Co. 1900. Pp. 106. 



Von Sichter's Text-book of Liorganic Chemistry. Ed- 

 ited by H. Klinger, translated by Edgar F. 

 Smith. Fifth American Edition, Philadelphia. P. 

 Blakiston's Son & Co. 1900. $1.75. 



SCIENTIFIC JOURNALS AND ARTICLES. 



The American Journal of Science for Novem- 

 ber contains the following articles : 



' Elaboration of the Fossil Cycads in the Yale Mu- 

 seum,' by L. F. Ward. 



' Chemical Composition of Turquois, ' by S. L. 

 Penfield. 



' Quartz Muscovite Eock from Belmont, Nevada ; 

 the equivalent of the Eussian Beresite,' by J. E. 

 Spnrr. 



' Volumetric Estimation of Copper as the Oxalate, 

 with Separation from Cadmium, Arsenic, Tin and 

 Zinc,' by C. A. Peters. 



' Synopsis of the Collections of Invertebrate Fossils 

 made by the Princeton Expedition to Southern Pata- 

 gonia,' by A. E. Ortmann. 



' Cathode Stream and X- Light,' by W. Eollins. 



In the first report of the Michigan Academy 

 of Science there is an abstract of a paper by 

 Jacob Reighard on ' The Breeding Habits of the 

 Dog-Fish, Amia calva,' showing that the nests 

 are made by the male sometime before the spawn- 

 ing season by biting or tearing away aquatic 

 plants, or other material on the bottom, leaving 

 a concavity lined with roots, gravel or water- 

 soaked plants. These nests may be quite near 

 together or a considerable distance apart ac- 

 cording to the numbers of fish and character of 

 the bottom, and a single nest may be used by 

 two fish in succession, consequently containing 

 eggs in very different stages of development. 

 The act of spawning occupies several hours, the 

 eggs being deposited at considerable intervals. 



The American Naturalist for October has for 

 its leading article a ' Reconsideration of the 

 Evidence for a Common Dinosaur- Avian Stem 

 in the Permian,' concluding that this hypoth- 

 esis should not be discarded, but very seri- 

 ously kept in view. W. A. Cannon discusses 

 ' The Gall of the Monterey Pine ' and W. S. 

 Nickerson has a ' Note on Distomum arcanum 

 (n. sp.) in American Frogs ' a species found so 

 far only in frogs from Massachusetts. G. W. 

 and E. G. Peckham have a brief article ' In- 

 stinct or Reason ' noting a case in which one of 

 the solitary wasps was led to depart from the 

 customary manner of dragging insects into her 

 burrow. The usual instalment of synopses of 

 North American invertebrates is lacking. Edi- 

 torial Comment, Reviews, etc., complete the 

 number. 



The Popular Science Monthly begins its fifty- 

 eighth volume with the November number and 

 has for its frontispiece a portrait of the late 

 James Edward Keeler. The first article is an in- 

 stalment of Professor Newcomb's ' Chapters on 

 the Stars ' and treats of binary and multiple 

 stars, star clusters, nebulae, and the methods by 

 which they are investigated. Under ' Rapid 

 Battleship Building ' Waldon Fawcett notes the 

 (comparatively) short time in which some of the 

 very largest vessels have been constructed. 

 The second part is given of ' The Address of 



