W.F. Meggers, C.H. Corliss and B.F. Scribner: Tables of spectral-line intensities : Part I, Arranged by Elements; Part II, Arranged by Wavelength. National Bureau of Standards Monograph 32. Part I, 485 pp., $ 4.00; Part II, 284 pp., $ 3.00 (Available from the Superintendent of Documents, U.S. Government Printing Office, Washington 25, D.C., U.S.A.)