350 NATURAL SCIENCE. May, 



No. i of the Journal of Experimental Medicine contains 210 pages, 

 eight plates, and other illustrations. The journal will be devoted 

 to original investigations in Physiology, Pathology, Bacteriology, 

 Pharmacology, Physiological Chemistry, Hygiene, and Medicine. It 

 is published for Johns Hopkins University by D. Appleton & Co., 

 New York. Subscriptions, $5 per volume of over 600 pages, may be 

 sent to Mr. N. Murray, Johns Hopkins University. 



Other Serials. 



The January number of the Psychological Review contains a valuable 

 paper on " Psychology and Physiology," by Professor G. S. Fullerton, 

 of Pennsylvania. 



The January number of the Monist publishes a translation by 

 T. J. McCormack of Professor Weismann's address on " Germinal 

 Selection " delivered before the International Congress of Zoologists 

 last September ; also a translation of Professor Ernst Mach's recent 

 inaugural address on the part played by accident in invention and 

 discovery. 



A very timely paper by Dr. James Rodway on "the old Boundary 

 of Essequebo " is to be found in the December number of Timehri, 

 which also contains " Stray Notes from Pirara " and " Some 

 Guiana Parrots " by C. A. Lloyd, and an investigation into the 

 materials of the urali poison by J. J. Quelch. 



Vol. viii., pt. 2, of the Journal of the College of Science at Tokyo, 

 which has been sent to us, contains a paper by Asajiro Oka, which 

 describes Orobdella, a new genus of land-leech found in Japan. The 

 same author has a note on the so-called excretory organ of fresh-water 

 Polyzoa, in which he comes to the conclusion that the " Ectoproctous 

 Polyzoa have no nephridia. What have been regarded as such in 

 Phylactolaemata is nothing but a portion of the mesodermal 

 epithelium of the body-cavity, made conspicuous by the presence of 

 an epistome-lophophoral partition, wanting in Gymnolaemata." 

 Sakugoro Hirase contributes " Etudes sur la Fecondation et 

 l'Embryogenie du Ginkgo Biloba." Dr. I. Ijima and S. Ikeda 

 describe a new species of the peculiarly shaped octopod, Opisthoteuthis, 

 under the name 0. depressa. It is remarkable that the only other 

 species of this genus that is known was found in the West Indies ; 

 in our January number, p. 10, we recorded a somewhat similar 

 distribution of the Chimaeroid Hariotta. 



The March number of the American Journal of Science contains an 

 article on recent and fossil tapirs by J. B. Hatcher, which, besides 

 adding to our knowledge of the Oligocene Protaphus, reviews the 

 general question of the phylogeny of the Tapiridae and Helaletidse. 



In the April number, C. E. Beecher gives a restoration of the 

 dorsal and ventral surfaces of Triarthrus ; Dr. A. E. Ortmann 

 criticises the arguments advanced by Neumayr for the existence of 

 climatic zones in Jurassic times, and comes to the conclusion that the 

 differences in the faunas of the Jurassic deposits were not caused by 

 climatic differences, but partly by topographical conditions, and 

 partly by differences of depth and of sea-bottom in the seas. 



Science for February 21 contains an interesting address by 

 Dr. Theo. Gill on " Huxley and His Work." In this the passage of 

 most original interest is that where the learned author credits to 

 Huxley's sagacity the early appreciation of the affinity of the 

 Neoceratodus of Australia to the Mesozoic Ceratodontidas, with all the 

 far-reaching consequences that appreciation involved. 



