Corn tij tout finer icUli Alftlnnmr <lr ('(tntluUr 143 



villeH, inaiK ild nVn sunt \mh nioiiis mlnptvH A lour iniliou «t cVhI I'ciuw'ntiol. A Vht\h j'»i 

 roinnntri- souvriit dt-.s CiIh ot |M>tit IiIn cI*i PariHiciiH qui n'avaiptit puN Tair mStivt'-. tiiaiH (|ui 

 Huppor't^iivnt Miicux (|U<' I)>h i-niii|Mi>;ii»i'(ls Ich fati^u<4< (If la vii< urliainn. I' •■tnictit 



reiiiai'(|UHl>U>s pir Icur iiitcllif^eiuT ct lnur aclivilo. Kii hh tenant a i'aliri ili. •>■ MiU- 



tenant par uiio Ixinno nourritiire cch citmlins, minH avoir <lo Ikmih iiiukoIm, vivmit I ^ et 



font un travail oxcolloiit. lis uoiit naturuiixt^ — mai.s pour cela il faut doux gii »u 



iiioins. L«>H tils (1(1 canipagnards lu'ont paru HoufTrir fr^quemment de r<klu(»tion k la ville de 

 nu'ine qu(- \vi» tilH d'ouvricrs dans la carnpagnn. 



Vos idt'os Hur I'tMlucalion ri'-sulteiit (Iph faits. Eiles sont excellenteM et je leur souhaite du 

 HUcci'N. Ia- journal Ndlure dit uouvont Ips ni«'nii« choscs, inais il Ich melange d'afisertidna en 

 in6nii3M choses, ot (Us prpvcnlions <|ue je ne jmis pa« toujours approuver. II a I'air de croin? que 

 leH j((Mitlenion sont naturi'llcnicnt inferieurs aux ouvricrs. Noun avons prouve I'un ct I'autre 

 (|ii« 1(-K claHHt's supi'-ricurcs donnent pnrtout une pro|M>rti<>n considi'-raltK* (I'lionimcM <'-ininent«. 

 II wrait done iitiU- de fiivoriser c-cux de cettc classji qui niontrcnt <|U(-i(|ue Kout |K)ur ien siennes 

 ct cp Hprait plus prolitalth^ (juo dVlcver artiticifllcincnt (iu(>I<hi{)k inilividus do la ciiiMse inf(''rioure, 

 iiu niiiyon d(! suhvcntions |H'i-uniair(}« dillicilos i\ bicn plat'or. 



Votre dornior volume cotnpitNto adniirableinent h; premier. J(; vous en f(ilicit« et vous prie 

 d'agrtW, mon cher MonHieur, rasMuran(}e de tout men d^vouement. Alph. db Candolle. 



42, Rutland Gate, Ix)Nuon. March 5/75 



Mv DEAR Sir I have left your welcome letter unanswered for two nionths, being desirous 

 of sending, which T now do, a daily expecttxl copy of a paper read at the Anthropilogical 

 Society, on a subject to which you directed attention in the " Histoire des Sciences et des 

 Savants." It is on the probability of the decay of families by purely accidental cau-st-s. If you 

 could persuade any of your Swiss mathematicians to pursue the subject, it would Ik* very ad- 

 vantageous. What seems to be wanted now, is some simple function which approximately 

 represents the distribution of children in families, and to work this with Watson's general 

 formulae. You will see how complicated the problem is. I send the memoir by book post. 



Thanks greatly for your helpful criticism on my 'Men of Science.' I greatlj' value j-our hints. 

 T got Horgeret's strange book and read it with no little alarm; but after all, even supposing he 

 does not exaggerate, it seems to me that his own observations go to prove that strict Malthusian 

 restraint may generally coexist with a pure life, l>ecau.se he states that he never found those 

 uterine maladies in nunneries, which he seems to think so frei|uent in oitiiniiry social life, in 

 France. But he certainly reveals a strange state of things, unknown in England generally. 



Your remarks on the (|uality of health of townsfolk, — of their being acclimatised to town 

 conditions and of being able under these conditions to do gcxKl work, — are very instructive. 

 Still, if their race dies out rapidly, it shows, does it not? that their health has sufl'ered. It 

 would be instructive to learn the social statistics of the numerous small Italian towns, 

 where the same families have resided for centuries and whose population appears to vary 

 but little. 



Trusting that your la)x>urs in the 2nd Edition of the 'Ofographie botanique' are happily 

 concluded, Helieve me very faithfully yours, Francis Galton. 



To M. Alpiionsk UK Candollk. 



(English address) 42, KrTi.ANi) (iATE, London. 



Grano Hotel, Thun. July '2211^ 



Dear Sir, Thank you much for the pamphlets on "offets differents d'une m£me temp, etc." 

 in which the very interesting remarks about the struggle for existence among the buds, and the 

 persistence of character in the produce of ditTerent Iwugh.s, are mo.st instructive. 



I am not acijuainttHl with the memoir of Carl Lins(>er, who very proltably has anticipates! 

 much of what 1 am alwut to saj", namely that one might, |H'rhaj>s with protit, compare "les 



lines de temperature" not only "au-dessus de zt'i-o" but alK)ve other fixed points of de- 

 ■^^•rture. Thus if the broken line represent the well-known "thermogram" matle by a .self- 

 recording instrument, or protracted frtnn eye ob-servations, the ratios of the areas alx)ve the 

 lines B and C would have no reltUian to the ratios of AH to AC. Therefore some general 



