the wide clistrilnitioii of gmnitc, on tlic wcntlicring of which tlic fornintionof cliinn cliiy tlepcnclcd cliiiin clay wns of lcss frcqucnt occurrcncc tliai might IJC cspcctccl. TEc Iind forintl tlint firiclj cliridcd fclspnr ohtninccl from such wcntlicrcc granite gave n distinctly nlknlinc rcnction 01 simply ngitnting i t with wiitcr, nil11 thnt w-lic~ cnrbon cliositlc wns pnssecl into t lie wntcr. tli! cstwction of potnsli wirs iiiiicli incrcilsctl. nnc potnssiuni cnrbonntc scenictl to I)c continuouslj forrnctl ovcr n consiclrrnlilc pcriotl. Tlic snnit rcsult wns oblninecl with powlcrccl micn nntl otlici alkali-ljcnring niincriils found in sucli wcntlicrci grnnitc. On rcpcnting tliosc tests with powdcrci ortlioclnsc, coiitnining sonic 12 yo of potrrsli bill wliicli did not nppcnr to linre been wcntlicred a1 all, n totnl cstriiction of only sonic O-j.?(, of alknl coiilcl IJC obtnincil with wntcr nntl cvcn will strongncitls with or without tligcstion untlcr press, urc. ctc. I t tlicrcforc sccrnccl to follow tliirl nltliougli sonic wct proces~cs tniglit IJC succcssfully rrdoptetl for tlic cslnictioii of olnsli contnincil ir s u c ~i rniticrnts, rcgnrcl rnust i>c LI to tlicir ptivsical condition, nnc1 i t woulcl nppcnr tIint tIie frittiny ~roccsscs clcscril~ccl by Jlr. Crcsswcll would be l i k c ~y to givc tlic tmt rcsiilta. Ilr. 12. S. NOIWEI.L sitid tlint fariricrs were not iitilisin~ tlic potnsh ol,tirined from wood nshcs, anif tiint vnlunbIc source of supply rrns unfortunntely not fully np mcintcd !JY tlicm. It sccnicd prolmblc tlint lls Lainit wits clcnr its iise this ycnr niiglit bc forcgonc. It Iind been stated (University Coll. of S. \'cilcs, Bnngor, IJcpt. of Ayric.) thiit tlic npplicnlion of com~i~on snlt to the soil would iiicrc.uc the proportion of potirsli avail-~J I C IJV nctitig on unnmiliilh supplies. Jrr. P. It. O ~S I I ~\ U C ~~I S I S S S Y , in reply ton question, snit1 tliiit no potnsli could IJC cs1)cctctl froni sc\ra.gc. Tlic pcrccntiigc was very sniiill nncl tlic dilution .-cry grciit,. Jlr. C ~c n a s ~v ~t r . , in rcply to n question froin tlic Cliitirinnn, siiitl t lint ltliotlin ;incl c'usliiniin and Coggcsliiill Iiiicl givcn sonic cstiincitc of cost.. ,\Tost of tlic SOIII'CCS iiicntionctl \~oulcl IJC dciircr tlinri Stassfurt SilllS ; 110\-I I l U C l l tlcnrcr \voultl dcpcllcl 011 locnl circrmsliiiicm. Canadian Section. IWOF. .I. WATSOS UAIS IS mi12 CIIAIII. A QlJ~\T~lrl'~l'l'T'E I1 I1:hCTION P O l t TIIE I)lr3TEC'rlON O F XlTltll'YES. m-Luriwn rriscIr.Lz. rcntlily iipplicd rcnction for nit riitcs wliicli woulcl knowi " blnck-ring tiiiil I' rcd frinic tcsts.