260 



Physik. 



3688 Kölke, F., Das Problem der Entwicklung unseres Planetensystems. Aufstellung 

 einer neuen Theorie, nach vorhergehender Kritik der Theorien von Kant, Laplace, 

 Poincarö u. s. w. Berlin 4 908. 8. m. 3 Figuren. Mark 6 



3689 Processo verbale delle sedute della R. Commissiorie Geodetica Italiana, tenute 

 in Roma, 3—6 aprile 4906. Bologna 4907. 4. 79 pg. c. 3 tavole. 



3690 ProphacillS JudaeUS Montepessalanns, Almanach Dantis Aligherii, sive Pro- 

 phylacii Judaei Montispessulani Almanach perpetuum ad annum 4300 inchoatum, 

 nunc primum editum ad fidem Codicis Laurentiani ab J. B o f f i t o et C. M e 1 z i 

 d'Eril. Florentiae 4908. 4. 35 e 133 pg. c. 4 tavola. 



3694 Riem, J., Unsere Weltinsel, ihr Werden und Vergehen. Hamburg 4 908. 8. 88 pg. 

 m. 7 Tafeln. "450 



3692 Struve, H., Beobachtungen des Saturnstrabanten Titan am Königsberger und 

 Berliner Refraktor. Berlin (Abh. Akad.) 4 908. 4. 44 pg. 2eo 



3693 VlterM, A., Sulla determinazione del Geoide mediante le misure delle deviazioni 

 della Verticale. Mantova 1906. 8. 32 pg. 



Physik. 



3694 AyrtOD., W. £., fflather, T., and Smith, F. £., New Gurrent Weigher and Deter- 

 mination of the Electromotive Force of the normal Weston Cadmium Cell. London 

 (Philos. Trans.) 4 908. 4. 82 pg. with 2 plates and 25 figures. 5so 



3695 Bäsch, A., und Leon, A., Ueber rotirende Scheiben gleichen Fliehkraftwiderstandes. 

 Wien (Sitzgsb. Akad.) 1907. gr. 8. 37 pg. m. 5 Figuren. Ho 



3696 Bemmelen, W. van, Notes on the present Position of the Earth's Magnetic Axis 

 derived from Declination Data alone. — Bauer, L. A., What is the Barth s 

 Magnetic Axis and its secular Motion? (Baltimore, Terr. Magnet.) 1907. roy. 8. 



9 pg. with 4 figure. 4 50 



Berget, A., Le Radium — voir no. 3728. 



3697 BiShop, F. L, The Thermal Conductivity of Lead. (Boston, Proc. Am. Acad. Sc.) 



4 906. 8. 4 9 pg. with 7 figures. Iso 



3698 Blackwell, H. L., Dispersion in electric Double Refraction. (Boston. Proc. Am. 

 Acad. Sc.) 1906. 8. 22 pg. with 4 plate and 5 figures. 2 



3699 Borghese, 6., Meteorologia e Climatologia di Novara di Sicilia Messina 4 907. 

 8. 64 pg. 



3700 Bridgman, F. W., Electrostatic Field surrounding two special Columnar Elements. 

 (Boston, Proc. Am. Acad. Sc.) 1906. 8. 4 pg. with 8 figures. 1ao 



3701 Coffln, J. G., Influence of Frequency upon the Self-inductance of Coils. (Boston, 

 Proc. Am. Acad. Sc.) 4 906. 8. 4 4 pg. with 3 figures. leo 



3702 Davis, H. N., The longitudinal Vibraüons of a rubbed String. (Boston, Proc. Am. 

 Acad. Sc.) 1906. 8. 35 pg. with 3 plates and 11 figures. 2so 



3703 Fleming, J. A. f Mean Values of the Magnetic Elements at Observatories. (Balti- 

 more, Terr. Magnet.) 1907. roy. 8. 8 pg. 4 20 



3704 — Scientific Results of the Ziegler Polar Expedition of 1903 to 4905. (Abstract.) 

 (Magnetic, meteorological a. 0. observations.) (Baltimore, Terr. Magnet.) 1907. 

 roy. 8. 20 pg. with 1 figure. 2 



3705 Gerard, £., Mesures Electriques. Etalons et instruments ; essais möcaniques, 

 photomöcaniques, magnötiques et 6lectriques; etc. Lecons donnöes ä l'Institut 

 electrotechnique Montefiori. 3. Edition. Paris 1908. 8. 711 pg. av. 304 figures. 40 



3706 Gruner, P., Die Welt des unendlich Kleinen (Atome, Elektronen u. s. w.) Ham- 

 burg 1908. 8. 32 pg. 060 



3707 Hall, E. H., Campbell, L. L., and ServiSS, S. B., On Thermo-electric Hetero- 

 geneity in certain Alloys, especially Germain -Silver. (Boston, Proc. Am. Acad. 

 Sc.) 4 906. 8. 32 pg. with 8 figures. 2w 



3708 HasenÖhrl, F., Zur Thermodynamik bewegter Systeme. Wien (Sitzgsb. Akad.) 



4 907. gr. 8. 15 pg. Oso 



3709 Hort, H., Die Wärmevorgänge beim Längen von Metallen. Göttingen 1908. Lex. 8. 

 61 pg. m. 52 Figuren. 



Jahrbuch der Geophysik — siehe Nr. 3685. 

 Naturae Novitates. Jahrg. XXX, No. 8. R. Friedländer & Sohn in Berlin. 



