THIS book is intended to suit the needs of the public health worker, and is a recapitulation of the course of lectures delivered to students studying for the degree of doctor of public health at the Johns Hopkins University. The first four chapters deal with the technical side of illumination, and succeed in conveying a very good account of the methods to be adopted in light measurement, and also of the advantages and disadvantages of the various illuminating systems, and one which easily can be followed without any special technical knowledge. The next three chapters deal with the questions of glare, sufficient illumination, and the best conditions for visual efficiency, the last including a brief account of the important work of Ferree and Rand on the. measurement of ocular fatigue. Other chapters describe the best methods of illumination for schools, factories, and other interior and exterior purposes.

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Lighting in Relation to Public Health . Nature 115, 601 (1925). https://doi.org/10.1038/115601b0