origin, hilt tlic Itiorc itiiportntit Eiiropcitii pnpcrs are also refcrrcd to. If oiie I ~R S aiiy criticisin to iiinke concerning this piirt of the book, it can only bc that t,lic subjcct is treated if anything in too great detnil, nitd that possibly in sonic c:iscs tlie suthors liave tended to cscccd thc 1itiiit.s of their subjcct as ititlicntcd by the title of the book. For instance, thc iiinterial in tlie find chnptcr (' ; The nntrit.isc values of proteiua, ntid thc protciii values of foods in tiutritiori "1, intercstiiig nnd importaut as it certnirily is, would seetii to be nppropriatc ratlicr to R treatise on nutrition in general tlinri to n work 011 the omino-acids.
It n-ns relnnrkcd abovc tlint the niithors scciii to be more a t lioiiie wvhcn discussing the amino-acids froiii t.lie physiological staudpoint than \idten dcnling wit11 their pure chcioistry. It is ccrtniiily casicr to criticisc tlic first tlirec cliaptcrs tliaii the reinaindcr of t.he book. The Itlatcrinl liere dealt with could have bccii presented in considcrnbly less space had thc authors l m i i ~iiorc oareful, firstly, to avoid rcpctition a~id, sccondly, to omit IIIUC~I descript ivo itirttcria1 such as falls \vit.Iiia the scope of any work on clciiiciitnry organic clictiiist ry. Iu Chapter I, for instance, the scctioti on " Rcnctioiic " largely repents tlic prcccdiiig scctioii 011 '' Dcrivntiws," ~i i d ngain iiiiicli of tlic sniiie iiiiittor is quoted in Chapter IT, whilst i t is ccrttiiti t.lt;it ito cliciiiist. rcntlirig t,ltc book will need to IJO givcn LI full account of tlic clctiwntnry priiiciplcs of stcrtochcmistry (11. sa), or to bc told that " TIic dcst,rorotatory cicitls lire tlcsigtiated d-acids, ~l i i l c tlic Iaxorotntory acids are dcsigiiiited 1-acids." Oric would siiggcst t h t the space thtis giscn t ~p to rcpctition or to cIcinciitary tiescript ioits iiiiglit profitably ItiLvC bccri utiliscd to iiicludc n rntlier iiiorc detailed nccouiit, of the cliciiiistry of sonic of :he si~iiplcr pcpticlcs, cspeci:illy in ,iew of tlw interest iri tltc~se bodies ~vliicli hiis bccii riroiised diiritig late Y ( ' i t r 5 I J ~ the work of soiiic of thc Gctiiinli schools. Dcepitc such inirior fit lilts 11s have bccn poirltc*cI out, tlie Imok is ccrtriiiily otic which will bc ~velcoiiietl hy nll biocltctiiists ris giving i t w r y coiriplctc rcvic\v of our present knoivletlgc of thc clirinietry atid biochemistry of t.lie niiiino-ncids. 11. 1 1 ' . l3IjSTos MARKET REPORT Thir Market Report i~ compiled from epocial information received from tho Manufaoturem concerned. Unlcda oUaerwijc atated, the prim quoted below tovsr&ir quantitiw net and naked at sellers' works. The following niterntiom in pricos are reported since tho publication of tho Inst Mnrkct Roport (ef. CIIRM. h Im., TAR PRODUCTS Tolirole.-90%, Is. 9d.-!&. per gnl. Pure, 2s. Itl.-2s. 3d. PHARMACEUTICAL AND PHOTOGRAPHIC CHEMICAL9 Acid, Citric.-%. OJd.-%. Id. per Ib. h G%. Calcium Lnctnta B.P.-ls. 24d.--ls. 31d. per Ib. I cwt. Iota. Phonncotin.-3s. 24d. per lb. PERFUMERY CHEMICALS Anotlolo (A1.P. 21/22' C.).--Ds. Od. per Ib. Eugenol.-l2s. pcr Ib. Gornniol (Pnlmnrosn).-2le. per Ib. GcrnnioI.-Gs. Od.-lOs. per Ib. lioliotropino.-b. per lb. Ifio Eugcnol 148. 3d. per Ib. LinaloL-(u Bois de nose) 12s. Gd. per Ib.-(ex Shui Oil) 10s. per Ib. Linnlyl Acctnta.-(ex Bois de Rose) IGY. per Ib.-(ex Shui Oil) 125. per Ib. Rliodinol.--BOs. per lb. Sdrol.-%. Grl. per Ib. TorpineoLla. 6d. per Ib. Vaiiilin (a Cbue Uil).--I6s.-~7s. Gtl. per Ib. (ez Citnincol)-l3s. Gtl.-lBs. Gd. per Ib. Aug. 23, p. S:m) per gul. PATENT LIST Thc coiiililetu Spcdflcutlons notlflcd ns ~cceptcd nro upon Lo Inapeot!pn at the Pahiit Otltca liiiiiicdlstcly, mid to opposition not. lnt.er than OcL. -1. 10211. They nro on snlo nt le. rnelr nt tho l w e n t Oflleo Snfo Jlrnnch. Qirailty Court, Cllnncery Juno, Imidoa, \ \ ' . t X ! , oii Svrit. 5, 1020. Coinpieta Bpaalflcntloni h u g . :vi, 1920 V.-Applications J3cinbcrg :.-(:. I'rotltict ion o f iirtiliriiil silk. 24.9!)7. Drcyhis. 'L'rent,iiiciit nf crlliilosc. 25.025. Aug. 10. ElliR (Soc. Pnbr. Soic l<ltotlinsctii). A\kiniifiict.i~rc ctf iirti-Hiirbcnk ('iscosc Silk Irlnnufncturcrs), TM., i d Kregtoii. Impcrinl Clieiiiiciil Iiitliist.rics, Lttl., iiiiil Lcrcslr~~. Jliuni-ICiille &. Co. Productinn of cclliilnsc sliccts ctc-. ZR.OT5. rmili;, r,ttt. Jrmufrtctiirc of ~~I I I I I W cstcrs. 25.0.54-5. IColiorii, liotiorn k Po., niiil Scliupp. l'rodiictioii of iir1.i-JIottlton iintl Tscltittlin. 24,732. See XSIT. !I:riggs ' (Xnt.ionnl l'irpcr J'roccss Co.). Piipcr processing. \'critcr. Product ion of ccllolosc fiitty iioicl esters. 94,9li2. h g . 15. ficiiil silk nntl fiibrics. 24,836. Aug. 14. Artificinl Rill;. 25,172. Aug. 17. fnctiiro of cclliilosc tlcrirntircs. 24,457. -4itg. 14. -4ag. Iti. (C:cr., IO.S.2S.) AUg. IG. (U.S., 18.22) iititl 252.29.) SoIWtits for cC*IIIIIOSC esters. 25,062. Aug. 16. (U.S., 18.3.29.) ficinl silk thrcntls. 15,125. -4ug. 16. (cy., %.s.2Ss.) 24,7!)7. Aiig. 14. -4ug. 15. V.-Complete Specifications 2174 (192S). Drcyfns. Jlniiufiicturc of artificial testilc filninents or fibres. (317,097.) 2175 (1925). Ilrcyfiis. Jlriinifitctiirc of iirtifici:il liliinictnts or tlireiids. (3 I 7,0!)S.) 0732 (192s). I. C : . l?iirl~ri~ind. Spinning ( i f rirtificinl tlirciitls. (2S7,553.) 13,G3G (192s). Brit isli Cclnncsc, Lttl. (Cclnncsc Corp. of America). Jhiiiifiictnrc ( J f tcstile inntc?rinls. (31 7,W%.) 13,708 ( 19%). Ciirpni:i(!I ( r. G. I"cirlwnint1.). lhcs4iig nrtificinl silk yiirti. (317,117.) 1 3 , 9 6 3 4 (1928). Hciilcy. Spitiiiitig of iirtificiiil silk ctc. (317.125.) Jliiiiiifnctiirc of cirti1ici:il lilnineiits. (317,12(L) *22,392 (I92!)). Uritislt I h k n Artificial Silk Co., I h l . Prcvcrit.itlg tlic erolittioii of ilisrigrrcii blc sniclting giisrs i n t h o viscosc iirtificiiil silk ~niiiiufiictiirc. *22,576 (I 92!)). %cllstoNfiibr. \'iil(lliof, Biitrst, :tntl Hottcnrotli. 1nq)rovitig cclliilosc riiw rniitcrinl. (317,04(;.) *2-1,257 (1929). I. C: . Fiirlwiiiiitl. Streii$liciiiii~ cottoti, nrtificiiil silk, ctc. (317,OS5.) *24,32ii (1929). :erein 1. Clicm. rntl. SiilJOtiihit ion Of ccllitlosc iicctritr solittioits. (3i7,OSs). VI.-Applications ~iintcrids. 24,724. Aug. 13. Golf and Chemistry uiiii\wre, ti considcriilrlc debt, to chciiiistry, tlicir ol~lignt.ion is 1 1 0 ~ still Inrgcr 11s c*licniistry liiis eoiii(! to GENERAL NOTES CO., Ltci., ni , i w g P ~~~~~~~, :r,oll~ioli~ S.W.I ). cfijjtl(lu : tlltllough golfcrs r11rcndy o\vc, t Ilou~ll tl1cy 11111y IIC