1. Murray, M. M., Ryle, J. A., Simpson, B. W., and Wilson, D. C. (1948). Medical Research Council Memorandum No. 18.
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4. Stallybrass. Twelfth Edition: 1948;of Public Health. By W. M. Frazer -and C. 0, Textbook
5. The rate of movement and the change in direction in the present-day development of public health are illustrated by the facts that the eleventh edition of this well-established textbook, published in 1946, is already out of print and that the appearance of this twelfth edition is thus made necessary. The recognized value of this book to those to whom it is addressed is evidenced by the rapidity with which edition succeeds edition