Publications

1. Industrial or those made for determining the fitness of a candidate for employment.

Jl. Am. Inst. El. Evgrs., Vol. 46, p. 994, October, 1927. 154 Opt. Soc. Amer. Jl., Vol. 15, p. 96, August, 1927.

Reflection and Refraction of Electrons by a Crystal of Nickelr C. J. and L . H . GERMER .

Rays , I V . Beta-Rays, V . Gamma - Rays , V I . Nuclear Structure and Radioactive mology , VIII . The Effects o f Radioactive Radiations upon Matter.

Journ. Ind. and Engr. Client., Vol. 19, p. 531, 1927. 546 Insitute of Metals Division, A. I. M. E., February 15, 1927. Wire, Vol. 2, p. 161, 1927.

Dence against a face of a nickel crystal, and observations were made upon the diffraction beams which issued from the incidence side of the crystal at various critical speeds of bombardment.

Electrical Communication, July , 1925. Physical Review, Vol. 26, No. 1, page 71, July, 1925. Physical Review, Vol. 25, No. 6, page 808, June, 1925.

The two expressions are indistinguishable in the range of the measurements. Light Waves in Metals THORNTON C. FRY.

Strength-Tests of Telephone Materials.J . R. TOWNSEND.

Or imperfections are independent of the uniform field and are given by the usual expressions derived for zero field.