n

I~EVIEW. 
[*Tnll. 10, 10". 
forth, aliilst clcrcn gciicrnl rcnctions (with ncicls, bnscs, niid so on) nro discusscd. 'J'lio sccond :irtd lnrgcst portion of tlic book (Clinptcrs I\'. to Xl\T., 270 pp.) dcscribos tlic indiritliinl orgnnic conipoii~itls of nicrcury in siiniptuous dctnil. In niriny C:ISCS tho sub-licndiiigs, prcpnrntioii, propcrtics (pliysic:iI), :ind reactions, nrc cuiployctl, any iiumbcr of nictliatls of prcp:rrntion or rcactioiis u p to :I clozcii or so being rccordcd with full rcfcrcnccs to tlic litcr:iturc. Tlic publislicd nnnlgscs of tlic compoiinds 11:ivc h c n cs-:iiiiincd criticollg and satisfactory cstiiii:itions of the constitriciit elciticiits itrc indicatccl by tho approprintc fiviiibols gircii in brackets in tlio coursc of tho tlcsc~iptions of tho subst:inces. Appcndiccs inclitdc :in article oii tlie nnnlysis of orgniiic mcrcury conipoiinds cnibodging, ns frc uently tliroiiglipitt tho ~iooi;, tlio results of't\ic nut?tor's own cspcricnco, n list of proprictnry ~ncrcurinls, l~ibliogrnpl~ics, :ind : I list of patents on tho subjwt. 
Thc book is w c ~~ printed nnd hns h c t i cditcd with (YIPC. It affords 0 rcry coinplcto rccoril of tlic orgnnic conipounds of mercury, nntl cnniiot fail to bc of the grcntcst vnluc to tlioso ivlio r q u i r o dctnilcd infornintion, citlicr about tho gcnernl ntctltods of propnrntinri nnd proportics of tlicsc compounds, or about individu:il siibstnnrcs. 1'~IlAKK LEE 1'YJIAN. Tire CIIESIISTS' YEAII BOOK. n y F. W. ATACK and Pp. ~iii.+1142. (Jfntichesfer: Bheri*att and 7lii!rhcs. 1921.) Price 21s. n e t . 

In :in cnrlior rcvicw of this hook (cf. J., 1919, 320 R), :iltltoiigli due credit wns given to its co!isiclcr-:ibh nicrits, ntteiitioii WRS dirwtcd to certniii scctions irliich wcrc miicli it] ncctl of i~nprovcnic~it. I t is satisfactory to iioto tlint tlicsc criticisins linro heen tiken to h r t , : I I I ~ tlint tho prcscnt cdition is a miirkcd ndv:incc on its prcdcxxssor. I'lic physicoclieinicnl swtions i n jiarticul:ir Iicnr cridciico that t h y liavo bccii reriscd 1)s persons compctcnt in the sulijcct. Tlic clticf improrcnie~its i n t l ~c present edition nrc tlic revision of thc section on "Fucls mid Illuminnnts " by 1-1. hloorc, thnt 011 " Cryfit:il- IMcrcncc to ccirrclit GWIII:LU tcsGbooks will R ~O W that tlicsc i i i t c r ~4 1 i g rc,;e:irclics itrc iiaii:illy quotctl ict riccoiitl-li:incI, ;itid tli:it tlicir licnring is by 110 IIIC:IIIS I'itlly ~tttlcrstootl. Tlic pit1~Iic:i~ion of thc 1)rwiit Iiniitlsoiiic voliiinc iwikcs i t possihlc to fnlloiv tlic r o i i r ~ or t11c f:isi~in:itittg ii~rctiti~:itioits which Iinrc Iiv6ii co~icliicicil hy Sir George Ucilliy d u ~i n g nioru t11:iii tirciity yc:irfi, niitl to t p c w otit tho scciitciicu of his discorcritu. l'lic bt)oli tlocs not coilsist of :I rcprint of Llic origi11:il p:ipors, but it contains tlioir ntnttcr, rcrirrniigctl nntl coartli~i:itcd, !ritIi :itltlitioiinl criclcncc iiiid illristrcitioiin, sotiio intcrw~ing ni:ittcr liitlicrto i ~~~p i ~l i l i s l i c i l h i n g inc.lritlec1. l t n i : i k ~ no prctcitcc to be :I criticnl rcvicw of tlic tiitbjcct, nntl tlic work of otlicr iiircstigttorfi is not iisii:~IIg consitlc.rctl. hit tlic nio~iogrnpli rcpresciits a pcrsoiinl rccorcl of origiiinl irorli, ~) c r f ~r ~n c t l with tliu sintplcst of cspcr~~iicnt:il cqi~ipiiiciit, nnd cxltibiting tlirouglioiit :in originnlitg :ind frcslincss of trcntnicnt ~vliicli ninkc i t n iiiodcl of rcsc:ircli ns ivcll ns nil iniportnnt contribiition to ~nolccul:ir phgsics :ind to inctallurgy. 

L. \vIIIWPATES. aizfh

C d i t i O n , ill t l C 0 V O l U l J l C S .

C. II. D i ; s c i r .

PUBLICATIONS RECEIVED. 



  ,O\r OY-,SOJJIIIS. I]!/ S I I l C. BEILIIY. 1'~. 21). 4-2a6. ( L O I t t l O t L : Jfttcritilhor cord Co., L f J . 1921.) Price 20s. i111/. l'ho sttidy of tho propcrticu; of solids, cspcci:iIIg as motlificul by tho :ipplic:ition of form prodiiciiig tiiecli :I II icri I tlcforina tio 11, ir,m wry grc:i t ly r i d r n ncctl by tlia suEgvatiou, nindc by Sir Gcorgo 1it:iIl)y i n 1903, t l ~t tllc IIOW of solids took ~I : I C C tliroiiglt the foriixition of I\ vitreous nitxlificiitioii posscssiiil? tcnipor:iry ~nobility. This hypotlicsifi \v:m rtrrirctl a t :is tho rrwilt of mpcriiticnt.s on poliriliiiig ~tictiils, niincr:il~, rincl gl:i~s, rilld by t l ~c cx:i~t~itt:itinn or the hc!h:irioiir of tliiii itict:illic I i l n i ~. 1L I~IIR foiintl to be of grcrit service i n espI:tiiii!ig tlic! clfccL of coltlworkinr: on ~iict:ils :ind 111 giving :L rii8tioit:il cspIttu:itioii of tl!o p~izzliiig 1~ltctlo111c1t:i of f:Ltig:ltc. l'h tic\\' Iiypotlicsis WIIS, after sot110 ~o n t r o ~c r ~y , :iccoptctl Iig iiiost niot:illurgista it] this c(iiintry n11d i l l At~~ericci, I t i i t )in13 I I C Y C ~ yet niot iritl~ irillo :tcccpt:incc 011 tliu Contincnt. Oiic rciiso~i for this iri t11:it Sir Ccorge Uoilby's papers ircrc pulllislt(vI i l l scrt!r:tl (lilrcrc.ltt joiirti:tIs, (ioinc of \rliicl~ \rew not rciiclily ncccssililo, nnd niiotlicr w:is to I)o foiiiitl in tlio ~~totlilicritioiis nnd estcnsio~is of tlic origin111 ItyptlteHis, duu to otlicr iwrkcrs, rspcciiillg to Ilr. l<owiili:iin, which ~r c r c noL c:tsil.v tlisc~rit:inglctl 1)y forcigr~ renders. 


lngrnpliy " 1 1 s Ih. 11;. 11. Itodd, ;!id tho scctioii on '6&lli~losc " by C. F. Cross. llic I ' Con1 l'nr " section Iins bcen cottiplctclg rcwrittcn by I\'. 11. Colcrnnn. Tlic Ycnr Book " cotit:ti~fi n ninss of u s c f i i l in- fornintion i n brief coinp:iss, rind thc cditors nro t o iio coiigrntulntcd on its stcndily iiicrcnsiiig vnliic ns :I work of rcfcrcncc.