704 



SCIENCE. 



[N. S. Vol. XVI. No. 409 



ures are added to facilitate the location of the 

 section planes. 



Timely emphasis is given to the (B N A) 

 nomenclature, and it is hoped that this may 

 hasten its wider adoption. The volume as a 

 whole should prove useful to the student and 

 will no doubt aid teachers in formulating 

 coui'ses in neurology. The typography and 

 press-work are to be commended. 



G. Carl Huber. 



SCIENTIFIC JOURNALS AND ARTICLES. 



Journal of Physical Chemistry. May. 

 ' Synthetic Analysis in Ternary Systems/ by 

 A. W. Browne. This is the description of 

 several experimental applications of Bancroft's 

 new method for analyzing the solid phase ap- 

 pearing in three component systems without 

 removing it from the mother liquor. ' On In- 

 different Points,' by Paul Saurel. ' Studies in 

 Vapor Composition, H.,' by H. E. Carveth. A 

 study of simple experimental methods discov- 

 ered by the application of the phase rule. 

 ' Note on the Optical Rotatory Power of 

 Cane-sugar when Dissolved in Amines,' by 

 Guy Maurice "Wilcox. In such solutions sugar 

 is found to have a much higher specific rota- 

 tory power than in water. 



June. ' The Bate of the Eeaction between 

 Arsenious Acid and lodin in Acid Solutions; 

 the Bate of the Beverse Eeaction; and the 

 Equilibrium between Them,' by J. E. Eoe- 

 buek. An experimental study of the law of 

 the rates at which chemical reactions take 

 place in homogeneous systems. ' On the 

 Triple Point,' by Paul Saurel. ' On the The- 

 orem of Tammann,' by Paul Saurel. ' Ex- 

 periments on the Electrolytic Eeduction of 

 Potassium Chlorate,' by G. H. Burrows. 



The Journal of Comparative Neurology for 

 September contains a memoir of 85 pages and 

 two plates by Professor G. E. CoghiU, of 

 Pacific University, entitled ' The Cranial 

 Nerves of Amhlystoma tigrinum,' in which the 

 components of the cranial and first two spinal 

 nerves are described in detail and plotted after 

 microscopic reconstruction. This is followed 

 by an exhaustive comparative discussion of 

 these nerves in the light of other TJrodela. 



SOCIETIES AND ACADEMIES. 

 RESEARCH CLLB OF THE UNIVERSITY OF JIICHIGAN. 



The first meeting of the club was held on 

 the evening of October 8. Mr. Alfred H. 

 White gave the first paper, speaking on the 

 ' Theory of the Incandescent Mantle.' 



Data were presented of temperature meas- 

 urements made upon two kinds of mantles. 

 A pure thoria mantle attained a temperature 

 of 1510° C. and its ilkmiinating value was 1.2 

 candle power. A mantle with one half per 

 cent, ceria showed a temperature more than 

 one hundred degrees lower and gave thirteen 

 times the lig'ht. The conclusion was drawn 

 that the illumination of a mantle was to a 

 greater extent dependent upon the composition 

 of the mantle than upon the temperature. 

 This opposes the conclusions of Le Chatelier 

 and Nernst, who hold that the thoria-ceria 

 mantle attains a higher temperature than a 

 mantle of any other material, and that this 

 causes the unusual illumination. The theory 

 was advanced that the substance of the mantle 

 was a solid solution of ceria in thoria which 

 was capable of transforming the heat of the 

 flame into light more economically than any 

 other substance yet known. 



Professor P. Haber, of the Carlsruhe Poly- 

 technicum, who was present as a gniest, said 

 that investigations as yet unpublished, con- 

 ducted by his colleagues Bunte and Eitner, 

 had established the same fact, that a mantle 

 of pure thoria attained a higher temperature 

 but gave less light than one of the usual 

 thoria-ceria mantles. 



The second paper was given by Dr. Huber, 

 and represented work done in his laboratory by 

 himself and Mr. Adamson on the ' Morphology 

 of the Sudoriparous and Allied Glands.' 



The observations presented were based on 

 models made after the Born plate reconstruc- 

 tion method. The glands reconstructed in- 

 eluded ordinary sudoriparous glands, glands 

 from the circumanal and axillary regions, 

 ceruminous glands and glands of MoU. The 

 tubule constituting the coiled portions of the 

 sudoriparous glands studied varies in length 

 from 4.25 mm. to 10 mm., the excretory duct 

 forming one fourth to about one half of its 

 length. The end of the secretory portion of 



