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Show INTRODUCTION. will 1 d rib d in the last chapter of this volume. 'I h 'Y ar nu nif l tly adapt d £ r lf-£ rtilisati n, which i. fl'< r <1 c t th t of a woncl rfull y small XI ndit nn. f poll n · whil t th p rf ct flow ~·s. pr . cluced by thP ·an1 I plant ar arable of cr ss-f rtlhsat1on. C rtain c 1nati · p i , wh n th y flow r b n ath the wt t r, ]r ~c·p th ~ir • r lla l s d, apparently t pr .t ct the ir pollPn · th y mi ·ht th r for be call d cl 1 t - g<uui but f r r a ns as io-n cl in the pr I r pla a.re not in<'lnchlcl in th pr s nt sub-gr up. S v ral l 1 - t< f!'Clll i p ei , as w shall h r after se , bury th ir oY< ri(' or young al>· ules in the ground; but some f w oth ·r plant b hav in th am manner; and, as th y do not bury all th ir fl w rs, th y might have fonn cl a .'mnll •par<tt ubclivi ion. nuth r int •r ting nbdivision consists of certain plant. eli. ·ov r c1 Ly H. l\fiill r, some in eli vi duals of whi ·h Lear n pi uous flow rs adapted for ro sf •rtili ati n by th aiJ of ins cts, and others much , u all r and l nspi uous fl wers, whi h have oftrn he n lirrhtly 1n difi c1 s as to ensure self-£ rtili ation. Ly. in~achia vul_qa?·is, Euphrasia ~fficinalis, Rhinanthus en·. ta-galli, and Viola tricolor c n1e und r this head.* 'rh m'" 11 r anll s conspi uous flowers ar not clos d, hut . far '" th purpose which they serve is on- '(11'11 cl nmn ly, th assur cl propagati n of th I cic . th . y appr ( h in nature l istogami flow rs; but they rliff r fron1 thr.1 by the two kinds being pr <lu c1 on eli tin t plant . 'Vith nhtny I ]ant , the flow rs towards the outsicl of t.h , infl n· · n · ar 1nu h larger ancl more con pi unn. than th n tr( l on s. As I shall not have occa- • H.l\Iiill r 'Nature,' ept. 25, 1 7~ (v l. viii.). p. 43', and Nov. 20, l 7 (vol. ix.), p. 44. Also • Die Befrucbtung der Blumen,' &c., 1873, p. 294. I... TR< r 'TI ... . i n t r f r t 1l1.lllt f thi I~ incl in th full \\in o· ·h< ptt>t" I "ill h lr n·iv, ~ f '" cl ·tail· r, pc ·ti11g th m. It i f~unili<tr t > < n •r on tha th n y-fl r t: of th ' !oH pc ·it;_ oftml lill'er r 'llHtrlrally fr 111 th < tlu r · ~ and ,' it is "ith th ut •r fl w '1' of n1nny 111 ·llif n 111 •n1 ·if r: ~ ncl n, f w >th r f<unili ' •' v •ral 'P ·i '' >f IIycln no·u nul ·triking-in 'i<UH'<'.' < f th '<Ull ~ f< ·t. nl ia '<'Oll' c ·c·nns In.,< ~tul< pr ,. ·nt · c v ry nrion app ·an n ·c. frmu 111 • ,f thl flow r h< vino- th tip f on' of th · 'l nl • <1 v 1 1 <1 into a Lug p ~tal-lilr •.·pan ·i >n •olonr <l ith r whit r purpJ . '1 h nt ·r il W<1 l" in · t· ral antha 'l'OU ~ n n ar larg mul · >n:pi 'lH U.', bnt ril · th llP.·t in or l •r an · tnall~r p<'tl lll{)(l •rat< l f rtil antl ·aptthl f ·ro.':-f rtilis<ttion · "hil·t the · n t n l on · nr <' 1 i · t t n l hitrh] r f rtil · i t 11111 r n ·inn· in · 11 th ~ <ben •n: I '·rv ~ t attn ·t in ' ·t·. Th rc·.·ult i: that. cro -f ·rtilisation i thu fav< ur ·cl. I .'t fl )\\' r · "itlwr n t ft ~r ·iucr f rtili. l, 1 nt Iil<l lrancl stat··+ that th 1';. "-fl r ·t · f th • 1cnnp ·iti. L ·t for a I nu· tin1 • until t 11 tho· • < n th li · · ar in pr •r"nt t ·d · t n<l thi •1 ~arl h " · th n · f th fonn ·r. Th ' r1 y-fl ret ,J. , Jtt,' ,Jonrn 1 of Dot 11 •,' ruluu, llPW ri '., Yol. 1. 1 'i'!., pp. 1 ·1- 1 a. t Dio ll •fruchtung dt.:r Blu- |