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Table of Contents

382. Strutt, Phil. Mag. June, 1903.

383. Elster and Geitel, Phys. Zeit. 4, No. 19, p. 522, 1903. Chem. News, July 17, p. 30, 1903.

CHAPTER XIV. RADIO-ACTIVITY OF THE ATMOSPHERE AND OF ORDINARY MATERIALS.

384. Geitel, Phys. Zeit. 2, p. 116, 1900.

385. C. T. R. Wilson, Proc. Camb. Phil. Soc. 11, p. 32, 1900. Proc. Roy. Soc. 68, p. 151, 1901.

386. Elster and Geitel, Phys. Zeit. 2, p. 590, 1901.

387. Elster and Geitel, Phys. Zeit. 3, p. 76, 1901.

388. Rutherford and Allan, Phil. Mag. Dec. 1902.

389. Allan, Phil. Mag. Feb. 1904.

390. C. T. R. Wilson, Proc. Camb. Phil. Soc. 11, p. 428, 1902.

391. C. T. R. Wilson, Proc. Camb. Phil. Soc. 11, p. 428, 1902; 12, p. 17, 1903.

392. C. T. R. Wilson, Proc. Camb. Phil. Soc. 12, p. 85, 1903.

393. Allan, Phys. Rev. 16, p. 106, 1903.

394. McLennan, Phys. Rev. 16, p. 184, 1903.

395. Schmauss, Annal. d. Phys. 9, p. 224, 1902.

396. Elster and Geitel, Phys. Zeit. 3, p. 574, 1902.

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