trimethyls1ptxldrhyde, benraldehyde, and b e m p h e n o n a O b vioualy in t h w cases enolization is not possible. Spnre limitntions prevent pointinx out numerous other a m r s and clrficiencira. T h w ncvcrrly limit the utility of the book In its p r w n t state it is a h i ~ h l ydnnwrous h w k for studcntrr to rrnd ainrc it may lend them into mnny erroneous thmretirnl concepts. Its major utility will I r to invertigaton, e x p r t in tho field who are sulfieirntly well v c m l in thc Hehl not he In1 mtmy hy 1 1 r ~r n m in the interpretation and fact, and r h o will no cloul,t find it ronvmimt to hnve avnilable a summary oi tlw liternturr for war rcfrrcnre. IIERBERT C. BROWN
PmDm U r n - m L A . A . ~ E , IND,.~.
The mlium fusion technique for the r l s ~ c t i o nof nitrogen, sulfur, and hnlogena is not uwd in Manunl I. In fact no test for m~lfuris indicated and the tmt for nitropn involve the detection of ammonia during the ~lknlinchydrolyris of acetnmirlo. 3fctnIlie mliuni is e m p l a y ~ in l Manual 1 in the experiment on alrohols and phmnl. The most novel features of Manual 2 .we the atrictly semimacro wnle, a pa@ devoted t o directions in ura, of accident, and the avoidnna, of ethyl alcohol. Isopropyl alcohol is used as a m b t i t u t c for ethanol when nn alcoholic solvcnt is required, nnd ethylenc is prepnrd from ethylene dibromidc. T h r mviewr ferls that Xfnnunl 1 is more inclusive than moat manuals of its typc. Ihcauw of its p n r m l chnmcter, hfnnual 2 hnq nrmy atlrnetivc features to remmmmd it. DONALD C. OREGO
LA~IORATORY MANUAL OF E L E U E N T ~
Unr=uun o r Ve.ron Bomwrrmor. V ~ m r o m
ORGANIC CHEMISTRY
E. Camwrlqne, Arociats Professor
of Chmnlsky, Indiana Uni. Pr&smr veraity, Bloomington, Indiana; H a m l d Hart, -ant of Chemistry; and Robert D. Schusb, Ariatant Profemr of Chemistry, Michigan State Collste, East Lansing, Michigan. 197 pp. Wm. C. Brown Company, Dobuqua, Iowa. 1950. x I1 figs. 21.5 X 28 cm. Planographd. $2.50.
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LABORATORY MANUAL OF ORGANIC CHEMISTRY GCOIW H. Coleman, Dean d the kullttlhd T e d e Technolog,, Charloitarllls, Virginla; Stanley Wawronsk, Arociate R* fassor of Chemistry; and Robert E. Buckles, Aaalrtant Profof Chembhy, The State University of Iowa, I m a City. Prantica Hall, Inc., N e w York. 1949. x 127 pp. 24 figs. 21.5 X 28cm. $1.50.
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T l e s e m ~ u u a l sare of the papelmvered, workbook type. Report aheetw only are perforated and punched in the first manud g (Manual I), whilr in the eeeond mmual (lfnnual2) all p ~ p are xo trentd. Mnnunl 1 has n spiral binding. l h t h mnnunls are rwatly inrangwl and thc variety of experiments in endl is such that the student should gain nn nrlcgunteeqwicna. in the l d m n c tory in his p s r t i n h r COURC. 3Ianunl 2 olTvm a r i * l w latitude since it is designed for a two~ m c a t r ror thrw-qunrtrr coume with two Inborntory periods of thrw hours cnrh per wcek. Afanual 1 is dmiynd for a oneu m m t r r or onr-qunrter caumc. 3fnnud 2 contnina 50 experinxnts covering fdl 1:tborntory periulx, and Xlnnunl 1 conbins 25 ~ ~ p e r i m e n t s .In Ifnnual I, mnsiderably more emphnsis is plaml on the ao-cnllcl lest tube cxperimmts, roughly twc-thirds lwing of this type. Thc report almLq arc therriore mmerhnt more lengthy in this mnnunl. Thcrc arc questions on all tho rvport s h w t ~ of both mnnunls and in many cases there nre pmlw hm.q in hfnnual2. There arc 32 strictly preparntive exprimenla in Alanunl 2 and 10 test t u l r esprriments. The directions in both mnnoals nre clear and concise. Tho t m t of Mnnunl 2 is confined w l d y Lo experimentnl directions; the theory nnd principlrs are to I n , d i s c u d by the instructor in tho lnlmrntory eonferenee. There are w r y brief expositions of theory and principles in Manual 1 hut then? would require an thboration in the Inborntory conference. I h t h mnnunls include 2, rrction on the m:at
