187 



Mach, Ernst. La ^recanique, expose 

 historiqiie et critique de son developpe- 

 ment (trad, sur la 4' ed. allemande par 

 Emile Bertrand), avec introduction 

 d'Eraile Picard. Paris (Hermann), 

 1904, (IX + 498, av. fig.). 26 cm. 

 [0800]. ' 19843 



Machado, Virgilio. L'identite entre 

 les lois de Pfliiger et celles de Brenner 

 prouvee par la decouverte de la double 

 polarisation. Arch, electr. med. exp., 

 Paris, 12, 1904, (83-87, av. fis.). [0230]. 



19844 



Sur la polarisation double 



des electrodes employees dans Telectro- 

 therapie. Arch, electr. med. exp., 

 Paris, 12, 1904, (209-212, av. fig.). 

 [6230]. 19845 



Machalski, Henryk. Telegraf bez 

 dnitu. [La telegraphie. sans fil.] 



Czasop. techn., Lw6\v, 23, 1905, (379- 

 383,403-409,421-429). [6615]. 19846 



Mache, Heinrich. Ueber die Diffu- 

 sion von Luft durch Wasser. Phvsik. 

 Zs., Leipzig, 7, 1906, (316-318). [0320]. 



19847 



xmd Rimmer, Travis. Ueber 



die in der Atmosphiire euthaltenen 

 Zerfallprodukte des Radiums. Phvsik. 

 Zs., Leipzig, 7, 1900, (617-620). [4275 

 5270]. 19848 



Mcintosh, D. v. Steele, B. D. 



Mack, Karl. Physikalische Hypo- 

 thesen imd ihre Wandlungen. Akade- 

 mische Festrede . . . Leipzig (J .A. 

 Barth), 1905, (39). 21 cm. 1 }>l [0000 

 0010]. 19849 



Mackenzie, A. H. Theoretical and 

 practical mechanics and phj'sics. 

 London and New York (AIacmillan\ 

 1906, (xvi + 112). 19 cm. Is. I0050J. 



19849a 



McKergow, C. il. v. Coker, E. G. 



MacLawin, Richard C. On metallic 

 reflection, and the mfliience of the laj'er 

 of transition. London, Proc. R. Soc, 

 (Ser. A), 77, 1906, (211-234). [3020]. 



19850 



A numerical examination 



of th? optical properties of thin metallic 

 plates. London, Proc. R. Soc, (Ser. A), 

 78, 1906, (296-341). [3020 3840]. 



19851 



Theory of the reflection 



of light near the polarising angle. 

 London, Proc. R. Soc, (Ser. A.), 76, 

 1905, (49-65). [3820]. 19852 



(c-12818) 



McLennan, J[olm] C[unnmgham]. 

 Note on the use of sensitive quadrant 

 electrometers. [Abstract.] Ithaca, 

 N.Y., Proc. Amer. Phj'sic. Soc. in 

 Phvsic. Rev., New York, N.Y., 20, 

 1905, (174-176, with text fig.). [6010]. 



19853 



On the radioactivity of 



natural gas. Ottawa, Trans. R. Soc. 

 Can., (Ser. 2), 10, 1904, (Sect. Ill, 55). 

 [4275 6850]. 19854 



McLeod, C. H. and Barnes, H. J. 

 Notes on the difference of temperature, 

 McGill College grounds and Mount 

 Royal, Montreal, Canada. Ottawa, 

 Tran«. R. Soc. Can., (Ser. 2), 10, 1904, 

 (Sect, ni, 71-125). [1230]. 19855 



McMaster, Leroi v. Jones, Harry C. 



Maddrill, James D. Calibration of 

 a wedge photometer. Berkeley, Lick 

 Obs. Univ. Cal. Bull., No. 83, [1905], 

 (101-166, with text fig.) [3010]. 



19856 



Magnus, A. Ein neues Widerstands- 

 gefass zur Bestimmung des Leitver- 

 raogens von Fliissigkeiten. Berlin, 

 Verb. D. physik. Ge^^., 8, 1906, (1-8). 

 [6240 0090f. 19857 



Magnus, Alfred Wilhelm. Ueber 

 die durch elektri.-che Entladimgen her- 

 vorgerufene Ga=;absorption in Geissler- 

 schen Rohren. Diss., Miinchen. 



Leipzig (Druck v J. A. Barth), 1905, 

 (37). 23 cm. [0250 6840]. 19858 



Magnus, Rudolf. Goethe als Natur- 

 for.^cher. Vorlesungen . . . Leip- 

 zig (J. A. Barth), 1906, (VIII + 336, 

 mit 8 Taf..) 20 cm. Geb. 7 M. 

 [0010]. 19859 



Magini, R. Spettri ultravioletti 

 di \\n compoito tautomero. Roma, 

 Rend. Ace Lincei, (Ser. 5), 13, 1° sem., 

 1904, (104-108). [3860]. 19860 



Einflu?s der Rander auf 



die elektrostatische Kapazitat eines 

 Kondensators. (Uebers.) Physik. Zs., 

 Leipzig, 7, 1906, (844-843). [5220]. 



19861 

 Magri, Luigi. Relazione fra I'indice 

 di rifrazione e la densita dell'aria. 

 Roma, Rend. Ace Lincei, (Ser. 5), 

 13, 1° sem., 1904, (473-481); Nuovo 

 Cimento, Pi-a, (Ser. 5), 7, 1904, (81- 

 108). [3020]. 19862 



Un nuovo termometro per 



crio^copia e ebulli=copia a basse tem- 



2 



