โ Scribed by Nicol, Hugh
No coin nor oath required. For personal study only.
wood is tr:uisfornictl into r i subst:ince or substances of n cliffcrcnt iiiiturc ns the wootl dries. A rnorc dctoilctl invcstigntiou of this iiiiportiiiitr trniisfornintion is now lxing c:irrictl out,.
Blnny suggestions 11:ive I~ccii. ni:itlc in t,lic litcniturc of \vootl cliciiiistry 11s to tlic rblc plnyccl by the f d 1 i rnldcliy(le-yicltli~i:: coniplcses of ~vliicli l~cniicclli~losc is wry 1:irgcly coin~~osctl, in tlic syntiicsis of ligniii. A s prcvioiisly stcitotl, tlic iiritlior is of tlic opinion t l i n t tliwc siil).rt:iIms :ire vitdly conccrnctl in sucli n syntlicsis. J0n;d3 sng:jics(~s tlirit lignin is 21 coiitlciiscd frirnn protliict, whilst I3rlicIi3~l has tlcscribcd tlic isoMon of Iigiiin by Iiytlrolysis of i i pcctin-lignin conipoiintl cstriictetl froin Hiis. Jlc conclotlcs tlint in tlic phiit, p e t in is conrcrtetl into it lignin by c1icniic:iI r i n d cnzyiiiic proccsscs. Kh1son3~ suggests tlint the pciitoscs, iiiid of tlicsc cspcci:illy sylosc, niity bc rcgiirdctl 11s tlic parent subst:ince of lignin, i i l l d fiirtllcr, tllnt pcntoscs iirc pnrt4y inctliylntcd in tlic 1e:ivcs of pl:mts.
Tlicsc vicws iirc some\vlicit conflicting nntl i t is tlifiicult to say ~vliicli c:irl.icbs the greritcst ivciglit of cvidencc. Altlioiigli II great, niiioiiiit of work liiis Lecn tlonc 011 lignin itself, its constitution still rcniciias intlcfinitc. I t liiis IJCCII fount1 inipossiblc, so fiir, to trncc its origin in plrints, rind tlic gap bctwccn i t untl its prcctirsors, wliicli in tlic niit.rirc of tliings niiist lic siiiiplc siigiirs, Ii;is yet to bc britlgctl. It woultl :ippcnr to 1)c only rcasonnblc to cspcct tlint ii fuller iindcrsbaiiding of tlic p r o p t i c s iintl rciiction.4 of tlic wood lieinicclluloscs will Icad to :I tliscovcry ot the ultiniutc incclinnisui of ligniliccition.
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