Book Reviews in this article.TheCycle ofLife according toModernScience. By C. W. Saleeby, M.D.TheTreatment ofNeurasthenia. By A. Proust and Gilbert Ballet.Up from theSlums. By Owen Kildare.How toDeal with theUnemployed. By Mary Higgs.PracticalHints forTravelers in theNearEast. By E. A. Reynolds‐Ball, F.R.G.S.EnglishMedicine in theAnglo‐SaxonTimes. By Joseph Frank Payne, M.D.A Sparrow,aMouse,and aMan: A Study inSolitude. By George H. R. Dabbs, M.D.TheFood of theGods,andHow it came toEarth. By H. G. Wells.ExCathedrac: Essays onInsanity. By T. Claye Shaw, M.D., F.R.C.P.ClinicalLectures onMentalDiseases. By T. S. Clouston, M.D., F.R.C.P.TheProblem of theMilk‐Supply. By F. Lawson Dodd, M.R.C.S. Eng., L.R.C.P. Lond., L.D.S., D.P.H. Lond.ClinicalLectures onNeurasthenia. By Thomas D. Savill, M.D.AnIntroduction toDermatology. By Norman Walker, M.D.Anesthetics and theirAdministration: A Text‐book for Medical and Dental Practitioners and Students. By Frederic W. Hewitt, M.A., M.D.A Boy'sControl andSelf‐Expression. By Eustace M