Contemporary Science Classic Reprint

Excerpt from Contemporary Science

The men who have been good enough to cooperate with me in the preparation of this volume are masters Of their respective subjects; and what they say represents, in sum mary form, some of the latest achievements in science. The book does not pretend to be an exhaustive treatise, but it does claim to review some of the more recent and more suggestive work.

My thanks are due to the distinguished contributors not only for permitting me to use their articles, but for afford ing me the pleasure and instruction these articles have given me.

I am also indebted to the editors of the Transactions of the American Institute of Electrical Engineers, the four nal of Industrial and Engineering Chemistry, the Journal of the Washington Academy of Sciences, the Scientific Monthly, Science, and the Journal of the American M edi cal Association, for permission to reprint some of these articles.

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