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pretation of the hiininn rclstionsliips of science. I n " The Spirit of Chemistry " he examines liis witnesses with acumen, produces his exhibits with judgment, and mnrslials liis arguments in n lucid mniiner. To illustrate adveuture arid devotion he employs biography freely, but not to excess. Also lie never fails to remember that interpretation should depict, but iiot distort, tlic imngc of his subject, so that liis delineation proves as acceptable to the specinlist ns i t should be to the reader less deeply interested in the science, but not less irell equipped to appreciate its iiitcllectual form niid significnnce: His imngc, to be fnitliful, obviously cniinot be fashioned of material otlier than fncts nsccrtaiiicd ; indeed, modern cheinistry caiiiiot usefully be discussed a t all cscept 011 the bnsis of such invariuuts, their correlatioii, tlieii applications, and tlieir dctcrrninativc influence on human action ns n d l ns on human tliougiit. The chapter Beadings, therefore, n i i d much of the subjcct matter, arc familiar, wliilst the tone of tlie discussions and tlie judicious selection of interesting allusions should uudoiibtcdly attract those nlio seek to share our sources of kiiowlcdge and inspiration, althougli tlieir profcssionnl uccds lic elsewhere. JIaiiy of tlic dingrailis will bc cqiinlly fimilinr to rcatlers of test-books, Imt tlie author does not tlistliiiii to use either Cruikdianli's cartoons or pliotogrnplis of niotlcru indiistrinl plniit to illiistratc tlie iiitiiiinte reli~tioiisliip bctween clieiniciil knowlcdgc iuitl liumnii nff airs. To tlic notice of t.lle geiicriil reader, tlic tciiclier, illid t.11~ student who feels that 1)y his closo iiispcctioii of tlic trees 110 loses soiiictliing of tlic griiiiileiir niid form of tlie wood, this book cnn be rccoiiimcntlctl witliout rescrre. There are, h o w w r , sevcr:il books more suited to the rcquircmcnts of iiiveterntc tlicorcticiniis aud of iinpnticnt aspiriiiits to cnnditliiturc for tlic n e s t
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7nnns, Greoi & Co., 3028. Tlic J l C w edition of h o f , Fiiidlny's instruct.irc book cont.nins n consitlcrnblc nmount of ncw mnttcr. ~Iiilt~i-co~iipo~ic~it systcnis 11n\\*c rcccivccl furtlicr attention, nnd the scction on iron-carbon nllo>.s hns bccn rcvisccl for ~,IIC ficconil, but not,, wc S I I
S l'lnlliiuiii (In coiicew trtiteaurother furilia) tl,l3U,752 Sllver (111 orc, COIICC'IItrnted, utc. inctnl coiiteiit) . . . . fJ,S2S,U:jI 2,801.200
A S ISTI~0I)UCTIOS 1'0 (;I.:SISI{AL CIiI~AllS'~ll\\*. 13)' \v.