No coin nor oath required. For personal study only.
In his prefncc tlic author offers liis work ns R prncticnl giiidc to tho mnnufncturcr, n tcst-book for tlic ncndcniicinn and n work of intcrcst to tlic gcncrnl render intercstcd in nluminium alloys. Froin tlic singlc viewpoint of cnch of thcsc it is not dificiilt to criticisc, since thc ninnufncturcr will find much tlint is bcyond liis coniprchcnsion nnd nmch thnt hc cau obtiiiii from techniciil catnlogucs, whilc tlic ncnrlcmicinn will object to thc ninny proprietary nnmcs quotcd nnd to tlic spncc occupicd in explaining ninttcrs which nrc to liini ns his nlphnbet. Again, tlic general rcndcr will find tho author's lovc of footnotes somewhat irritnting nnd hie siiddcn dives from simplc description to nbstrusc postulntion soniesvlint puzzling. On tlic othcr hnnd, as I'rofcssor I-Innson points out in his forcword, n test-book on lientitreatment wliich docs not Incntion fitecl is sonicthing ncw nnd onc is npt, iinfnirly, to taka ns stnndnrds of conipnrison the clnssicnl works of fcrroirs nictalliirgy nhich trcnt their subjcct mainly from onc point of vicw. Thc person to ~vvhom this book will be most itscfirl is tlic works ~nnnngcr, who hns no ~nctnlli~rgicnl advice a vn i la blc.
licnt-trcntrnent, with tho object of incrcnsing strength, and rinncnling, with tho object of softcning, arc rcgnrded ns distinct processes and cnch section of thc book is divided under thcsc tn-o sub-headings.
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