300 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 52 



Wlyi N. M. WILHELMY "Discharge of Electr. in Gases," 



54-6, 74-5. 1905. 



WS W. WIEDEMANN and Wied. Ann. 62, 468-73. July 17, 1897. 



G. C. SCHMIDT Rev. (ficl. filectr. 14, 575-6). 



WW W.WIEDEMANN and Fortschr. Phys. 2, 8ri. 1898. 



A. WEHNELT Mitth. Phys. Inst. Erlang, pp. 16-17. 1898. 



Zni L. ZEHNDER Verh. Deutsch. Phys. Ges. 1903, 38. Jan. 9,1903. 



The following articles I have been unable to see, so they are not re- 

 ferred to in the summary : 



Fs FUCHS Prometheus, 7, 784. 1896 



Lni F. LEININGER Dissert. Wurtzburg. 1902 



Sms G.SCHMIDT "Die Kathodenstrahlen," 2nd ed. 1907 



Sn E. SOMMER "Uber Elektr. Entladungen," Miinchen. 1907 



Sg2 K. SIEGEL Wien. Anz. 81-82. 1907 



Sg3 " " Wien. Ber. 116, 129. 1907 



WE E. WIEDEMANN and 



H. EBERT Sitz. Erlangen Med.-Phys. Soc. Dec. 11,1891 



Partiai. List oi" Articles on Positive Rays Other than Canal Rays. 



Positive Rays in General: GR(726-9, 380-5); also Ann. Phys. 25, 882. 



Cathode Afflux : Vi ; V2 ; V3 ; Wh2. 



Ki-Rays: Gi(698, 47); G3(207) ; G6(229, 373). 



Si-Rays: G2; G6(230, 374); Tm7(363) ; Kzi; Tm8(664). 



Photo- Electric Positive Rays : H. Dember, Ann. Phys. 26, 403-8. 



J. J. Thomson Rays: J. J. Thomson, Proc. Roy. Inst. 1897; Tm7(362) ; 



Tm8(658). 

 P. Villard, Comptes Rendus 143, 674-6. 

 Anode Rays : Battelli and Magri, Phys. Zeitschr. i, 18-20. 



E. Gehrcke and O. Reichenheim, Verh. Deutsch. Phys. Ges. 8, 



559-566; 9, 76-83, 200-4, 374-80; 10, 217-25. 



Arch. Soc. Phys. Nat. 26, 5-15. 



Bull. Sec. France Phys. 1908, 40-7. 



Naturw. Rundschau 23, 209-11. 



Ann. Phys. 25, 861-84. 

 W. Wien, W3(449). 



Concerning the discovery of positive Electrons reported by Lillicnfcld sec 

 following : 



J. E. Lillienfeld Verh. Deutsch. Phys. Ges. 8, 631-5; 



9. 125-35. 

 E. Gehrcke and O. Reichenheim. . .Verh. Deutsch. Phys. Ges. 9, 593-7. 



E. Goldstein Verh. Deutsch. Phys. Ges. 9, 598-615. 



A. Bestelmeycr and S. Marsh Verh. Deutsch. Phys. Ges. g, 758-63. 



A. Bestelmeyer Phys. Zeitschr. 9, 541, 1908. 



J. Becquerel Comptes Rendus 146, 1308-11, 1908. 



J. Becquerel Comptes Rendus 147, 121-4, 1908. 



