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CIlLTICAL XOTES 0s TIIK C I l l ~S I l C A l ~ TKCII-SOLOGY OF I X D I A -l t ~~I 3 l i l ~l t ~ IIP IIUIIEI(T 1.. TKIiIi-, 1'.I.C.
IT ia pcrhups supcrfluous to sny tlint tlic grciitcr pnrt of our imliorts of riiblicr, cppcciiilly from South Aiiicricu uiid \Vest J\fricii, coi:ic to I.ivcrliool. S o tloulit the stnri~gc-looki~i~ 11111qis of mutcriiil \vliicli coinc untlcr iuorc or less biirbiirouu iillnics to tlic uuctionccr's Iiniu~~~cr, iirc ftiinilinr to mniiy business turn. 'I'lio ~i i ~t i i r n l Iiistory of this rnw riilibcr docs not ninterially coiiccrii the iiicrchiit hut nitlicr the iunnufncturcr, tliougli it must Iic coiifcsscil tlint it \roulil not tiikc tho iiicrcbnut loiig to lciirii nll that tho nvcnigo Inniiufnctiircr knows on tlic subject. To liegin with, tlic quc6tion of future supldy, i t iony Iio iifikid wlictlicr this is incrliuiistiblc, or wlictlier tlicrc is iiny tlniigcr of tlic niw iiiutcriid fiiiliog us. 'I'liis iiiuy lic riiitwcrcil liy tlic stntciiicnt tliiit iiltlioiigli 20 yciirs ngo tlicrc wits i t fccliiig itkin to uiisicty on this score tlic diseovcry iii recent yccira thut tho Iiitsin of the Oriuoco in Xortlicrn Ilruxil CoiitiiiuR vnst forests of iiuworkcd trccs llilS scrvcd to dinsipiitc this iiiisicty. 'l'h steps iilco ttikcii by tlie I iidiiiii atid Colouiiil ollicinls in conjuuctioli with licw tit lio~iio i i i intcrcsting our Consiils iuid Coloriinl Covcriiors i i i tlic iuiittcr liirvc bccii, to fioiiic cstciit, iiistIu111c1i1111 iii iivcrtiiig tlio tlirciitciictl cnliiiiiity. Forcsts of trces lire iio l o i i p x dcciiiiiitcd, but III'C tiililictl in II ~iictlioiliciil iiiiiiiiicr, nu11 youiig trccs nru cvcrywliere bciiig ~iliiiitcd. TI10 nccliiuitisntioii of tliu Ifcuctt llru:ilit~t.vw, of l'nni, is licing currictl out in Ihst Africa, atid ~iotnbly i i i tlic C.!liiirtluur Forest iii Upiicr 11idiii. Coloninl-growii riiblicr tlocs not us yet cuter into coriipetitio~i iii the opcu iiiiirkct with tlic ortliuury ~)rotluct, yet niiiiip1cs of iubbcr froin you~ig trccfi Iicivo bccn rcccircd for csniiiinution. I t st riick ~i i e tliiit tlicro WLH II luck of tcnrilo strciigtli nlro~it II r;nt~~plo of I'mi growu in Alcrpi, aiitl I slinll uwiiit futiiro siiinplcs with iiitcrcst.
It ifi iiiipovtniit tliiit wlicro rulilicr trccs iiro tniiirplniitcd the cliiiiiitic colitlitious ~ilioultl coiiicitlo 11s iiciirly 11s possible. Soi~.ic tloiilrt lins bccii us~i~cnscd 11s to wlictlii~ tho Soiitli Aiiicricnii trco will ever conio to uiutiirity iu Ccylon, wlicre it liiin been plu~itetl. Ilow uro \YO to oxpluiu tlic dilrcroiicc Iictwceu I' inliintl " ciuil " r i p rivw " l'iirii riilibcr, cxccpt IIY refidtinp from cliiniitic
π SIMILAR VOLUMES
c. I.:slcollrt. 11. G r I ~~i ~l ~i t \ v , I'otcr Ilitrl. J. von I Loliciiliuuscn. T. Jncksoii. cniisc niiy dernngeiiiciit of tho nutotiintic nction. For cnttle ships tlic nIipxrntus bciiig fisctl to the liosc-pipe, nil parts of tlic \+csscl caii bo eqiidly sprinkled with niiy rcqiiircd quniitity
A~tract--The photo-oxidation of butadiene rubber (BR) was studied in detail using films of a commercially available material, containing 33% cis-l,4-, 56Β°/o trans-l,4and 12% 1,2-vinylic units. The spectral data of the products showed that during photo-oxidation the following functional organic group
There has been a detailed study of the non-volatile products of the photo-oxidation of two kinds of cis-1,4-polyisoprene, viz. natural and synthetic (98% cis), by irradiating films in the solid state under ambient conditions. I.R., ~H-and 13C-NMR and chemical methods indicated the formation of the f