May 27, 1904.] 



SCIENCE. 



82a 



Lehrhuch der Mineralogie. Von Max Bauer, 

 Zweite, Vollig ISTeubearbeitete Auflage, 1904. 

 Stuttgart, E. Scliweizerbartsclie Verlags- 

 handlung (E. jSTagele). 1904. Pp. xii. 

 Fig. 670. 



A second edition has been issued of Dr. 

 Max Bauer's ' Lehrbucb der Mineralogie,' 

 forming one of the most important works in 

 this department of science that has appeared 

 in the German language. It is printed in 

 large clear type upon good paper, with 6Y0 

 illustrations, and is exceedingly comprehen- 

 sive and thorough, not only in dealing with 

 the crystallographic, optical and physical fea- 

 tures, but in its account ,of localities and of 

 new species, which are brought absolutely up 

 to date. Dr. Bauer's position as director of 

 the Mineralogical Institute of Marburg, and 

 his long editorship of the Jahrbuch fur Min- 

 eralogie und Geologie, have given him un- 

 usual facilities in the preparation of so im- 

 portant a work, and his well known reputation 

 for thoroughness is an assurance as to its 

 being a complete exposition of the subject. 

 It will form an essential addition to every 

 mineralogical library. G. F. K. 



SCIENTIFIC JOURNALS AND ARTICLES. 



The May number of The Journal of Nerv- 

 ous and Mental Disease contains the follow- 

 ing articles : 



' The Central Localization of the Sensory 

 Tract,' by H. H. Hoppe. It contains a full 

 summary of recent anatomical and patholog- 

 ical work on the central localization of sensory 

 functions. ' Two Tumors of the Brain ' are 

 reported on by Dr. T. M. McKennan, and Dr. 

 Smith Ely Jelliffe presents a statistical sum- 

 mary of the work of the neurological clinic 

 of Dr. M. Allen Starr for 1903. He shows 

 that in 16 years 31,600 patients have been 

 treated for nervous disease and that about 4 

 per cent, of all diseases are of the nervous 

 system. ' Two Cases of Meningeal Tumor ' 

 are described by Dr. A. C. Brush. These 

 were treated by ligature of the meningeal 

 vessels. ' The Influence of Fever in the Pain 

 of Locomotor Ataxia ' is discussed by Dr. 0. 

 W. Burr. This number also contains ac- 

 counts of the meetings of the Philadelphia 



and New York Neurological Societies, and Its 

 regular series of abstracts from the leading 

 neurological journals. Revue Neurologique, 

 Neurologisches Centralblatt, Deutsche Zeit- 

 schrift fur Nervenheilhunde, Monatschrift 

 fiir Psychiatrie und Neurologie and Jahr- 

 l/iicher fur Psychiatrie und Neurologie being 

 noted in this number. 



Contents of the Journal of Comparative- 

 Neurology and Psychology for April: 



0. P. Jenkins and A. J. Caklson : ' Physiolog- 

 ical Evidence of the Fluidity of the Conducting 

 Substance in the Pedal Nerves of the Slug, 

 Arioliniax colunibianus.' 



C. W. Prentiss : ' The Nervous Structures in 

 the Palate of the Frog: The Peripheral Networks 

 and the Nature of their Cells and Fibers.' 



C. L. Hebkick : ' The Beginnings of Social Re- 

 action in Man and Lower Animals.' 



Robert M. Yerkes : ' Inhibition and Reinforce- 

 ment of Reaction in the Frog, Rana clamitans' 



Raymond Peael: 'On the Behavior and Reac- 

 tions of Limulus in Early Stages of its Develop- 

 ment.' 



Editorial. 



G. E. CoGHna:,: A Critical Digest of Recent 

 Studies on the Finer Structures of the Nerve Cell. 



Literary Notices. 



SOCIETIES AND ACADEMIES. 



THE BOTANICAL- SOCIETY OF WASHINGTON. 



The April meeting of the society was held 

 Saturday evening, April 23, at the Portner 

 Hotel. Mr. David G. Fairchild acted as 

 chairman of the program. After the regular 

 review of literature Dr. George T. Moore, of 

 the Department of Agriculture, spoke on the 

 subject, ' A Method for the Destruction of 

 Algse and Pathogenic Bacteria in Water Sup- 

 plies.' The speaker mentioned briefly the his- 

 tory of some of the serious difficulties that 

 have been experienced by the water depart- 

 ments of many cities as a result of contamina- 

 tion of the reservoirs by algse of one sort or 

 another. He said that he had received nu- 

 merous complaints from each state of the 

 union, showing that the trouble is general. 

 Its seriousness in many cases is shown by the 

 fact that controlling engineers have in some 

 cases recommended that supplies representing 

 an investment of several million dollars be 



