mixed acids from the origiunl oil (77 g.) \rere dissolved in light petroleum nt 0" (wlieu 10.0 g. of resin scpsrnted) i t i d subsequeutly stcam-distilled (yielding 0.95 g. volatile mnterisl, cquir. 156 -1) prior to conversiou into nictliyl esters. Tliese were fairly rendily hydrogennted r r t 100" in presence of Rnney nickel, tile product being again stenm-distilled, and the residual esters (48.3 g., iodiue value 14.0) frnctionated iu it ~*iicuum. Again, n rcsitluc (6.8 g.) of utidistilled esters remined (cquir. 371 -5, iodiric rnluc 71), cvideiltly representing " resinous " coinpound which hnd not bee^ coiupletely removed in the eirrlier sepurntion from light ~ictrolcuni. The frnctionntioii dntn in tlik crperin~cnt sl~o~~vctl t l ~c presence of 1.1 . I % pnluutic acid i l l thc mixed liydrogennted ncids ; this corrcspotids to 11 .Syo palmitic acid in the original niisture of ncitls ill wliioh :ill the resiuous derivative w i s still present, : i d thus nccortls sntiufnctorily with tlie preceding dcterniinirtioii.
Roughly spenking, T. occidcri(uli.7 seed Lit contaius &out equnl proportions of a-eltrcosteiiric, liiioleic, oleic, sntuntrd, nnd the resinous or uon-fntty :icid, pilinitic acid forming about two-thirds of the snturnted ticids. It tliercfore sceins to linre no obvious technical prospects, but is interestiug from the more ncndeinic standpoint in its glyceride content of n non-Lit$ ncid of pcculinr constitutiotl, and in the nuirked differelice I,etireen its conipoueut ncids uud thosc of the niore convcntioual seed fat of the reltrtcd species 2'. p d a t a , the component zrcids of which :ire pdmitic 33, stcaric 14, olcic 14, linolcic 36, liuolciiic 3% (wt.). Noreover, only oue other seed fat17 of the Cucurbitncene lins I)ecii reported to coutniu uiisaturnted ncid.9 other tlinn those of tho iion-conjugated fatty Clg series.