Encyclopaedia Dictionary of Physics

Supplementary Vol. 2 J. Thewlis (Editor-in-Chief), R. C. Glass, W. J. Stern and A. R. Meetham (Associate Editors) Oxford: Pergamon Press. 1967. Pp. xiii + 447. Price £7. An encyclopaedia is equivalent to a large library of books with the additional advantage that the information it contains is already referenced and easily accessible. If literature is to be properly understood it must be read with a dictionary at hand which can be consulted whenever the meaning of a word or phrase is not clear.