dctiiil in two scpnrntc sections : thc lnrgcr dcnls with ort1in:iry bituminous coal tnrs, rind the sniiillcr with tnr obt.iiiiictI by the ciirbonizntiou of b r o w coal, n subject niorc p:irt,iculiirIy of interest i i i Germriny. 'l'lic dcscription of tlie technicul mctliods for tlic cs:imin:ition of iniiicrril oils riiitl pet roicuiu products occupil.~ t Iic inost co~isitloriilJlc port ion of tlic book. 'l'lius, ncrirly ciglit liundrctl piigtrs :ire tlevotctl to srilJjccts with which tlie fuel tccllnologist is coniiiionly :ind repciit ctlly couccrnetl. Tllc rcin:iintlcr of t Iic book, sonic three huntlrcxl nntl fifby prigcs, is ticvotccl hrgcly to fiits tint1 \viiscs rind etlicrc:il oils ; rclrit iwly sin:ill sections dc:il with cyanogcn coinpoimtls : i d inks. Criticism by :I I h i t isli rcvic\vcr is Ji:i~lirCilly tlircctctl to tlic scrint. trc:itnicnt riccortlcil to Hrit,isIi stiint1:ird nictliotls :inti stiintlnrtl spcciliciitioiis. Similiirly, sonic intliciition of the rcqiiircnicnts of I1ritisli users niiglit pro1itril)ly Iluvc I m n inclutlcd. A inore clircful gcncriil cditing would Iinvc cliniiniitcd tionic of tlic cvidcnt o~crlnppiiig of scctions, t Iius ni:ikiiig room for iiclditioiiul tliit:i of this cli:ir:ictcr.
Such criticism, Iiowt!vcr, i n fiice of tlic gciicriil excellence of t,lic whole product iou, is sonicwht piirsimouious, rind t,lie reviewer hiis no licsitrition in lictirt ily rccominending this piibliciit ion to h i t isli rciitlcrs wlio desire an iicciiriitc iiiitl iittriictivc bool; of refcrcnw, piirticulrirly oiie wliicli cont:iiiis iilso nn iiblc si~nini:iry of the less ~vcll-k~ro\vn I)ut tliorougldy s i t isfiictory met hods of cheiniciil ruiiilysis of 1,1112 iibove-iicinietl nintcrials. Suiiiericiil diitir arc crirefully t:ibulrrtctl, niid the test illustrrrtctl with over two liiinclretl iuitl lifty diiigriilils rind ~iliotogrirpliic rcprcscntutioiis.