Note 3 — PREFACE.
Reading edition
See, now, "Brain-Work and Overwork," by H.C. Wood, M.D.; also, "Mental Overwork and Premature Disease among Public and Professional Men," by Ch. K. Mills, M.D.; also, "Overwork and Sanitation in Public Schools, with Remarks on the Production of Nervous Disease and Insanity," by Ch. K. Mills, M.D.,--Annals of Hygiene, September, 1886.