88 Scientific Intelligence. 



Michael, A. A. Michelson, E. W. Morley, J. U. Nef, A. A. Noyes, 

 F. Nichols, I. Remsen, Th. W. Richards. 



7. Proposed Publication of the Works of Leonhard Eider. — 

 The. Swiss Society of Natural Sciences has issued a circular ask- 

 ing for contributions to aid in the publication of a complete edi- 

 tion of Euler's Works ; these may be made either as definite 

 donations or as annual contributions for a series of years. It is 

 planned to issue 40 volumes at a maximum cost of 25 francs. 

 The entire amount needed is estimated at 400,000 francs, of which 

 it is thought that 150,000 francs will be realized from the sale of 

 the books. This important movement has the sanction of the Inter- 

 national Congress of Mathematicians, the German Mathematical 

 Association, the French Academy of Sciences and other scientific 

 bodies. 



Donations, as also subscriptions for the volumes as issued, 

 should be sent promptly to the President of the Euler Com- 

 mittee, Prof. Dr. F. Rudio, Dolderstrasse 111, Zurich V., Switzer- 

 land. 



8. Prizes offered by the Austrian Society of Engineers and 

 Architects. — The Osterreichischer Ingenieur und Architekten- 

 Verein at Vienna offers prizes of 3000, 1000 and 500 krone for 

 the solution of the following problem : " Wie schtitzt man sich 

 vor den schadlichen Wirkungen der in den Wechselstromnetzen 

 dauernd oder zeitweilig auftretenden sogenannten hoheren 

 Harmonischen der Strom- und Spannungswellen oder wie unter- 

 driickt man deren Entstehen tiberhaupt ? " 



Solutions must be handed in on October 1, 1910. The special 

 conditions attached to the contest maybe learned on application to 

 the management of the Society at 9 Eschenbachgasse, Vienna I, 

 Austria. 



9. Psycho- Biologic et Energetique, Essai sur un Principe de 

 Methodes intuitives de Calcul ; par M. Charles Henry. Pp. 

 216, with 63 figures. Paris, 1909 (A. Herman et fils, 6 rue de la 

 Sorbonne). — This is a mathematical discussion, having as its 

 object the application of the principles of energy to the relations 

 existing between the senso-motor reactions of an organism to its 

 excitant. 



10. Die Einheit des physikalischen Weltbildes ; von Professor 

 Max Planck of Berlin. Pp. 38. Leipzig, 1909 (S. Hirzel).— - 

 Tire address held on December 9, 1908, before the scientific 

 faculty at the University of Leiden is given in this little pamph- 

 let. It deals chiefly with the subject of conservation of energy 

 and its application to thermodynamics. 



11. Phrenology: or the Doctrine of the Mental Phenomena ; 

 by J. G. Spurzheim, with an introduction by Cyrus Elder. 

 Revised edition from the second American edition, in two vol- 

 umes, published in Boston in 1833. Pp. 459, with 14 plates. 

 Philadelphia and London, 1908 (J. B. Lippincott Co.). — "An 

 accessible authoritative statement of the principles of Phrenology 

 is needed, and will be found in the following treatise, which is as 

 simple, clear, and logical as any elementary work in any other 

 science." Introduction, p. 29. w. r. c. 



