yetasIregardyourverdictasfarmoreimportantinmyowneyes，andIbelieveintheeyesoftheworldthanofanyotherdozenmen，Iamnaturallyveryanxiousaboutit。Thereforeletmebegyoutokeepyourmindopentillyoureceive（inperhapsafortnight’stime）mylatterchapters，whicharethemostimportantofallonthefavourableside。Thelastchapter，whichsumsupandbalancesinamassalltheargumentscontraandpro，will，Ithink，beusefultoyou。Icannottoostronglyexpressmyconvictionofthegeneraltruthofmydoctrines，andGodknowsIhavenevershirkedadifficulty。Iamfoolishlyanxiousforyourverdict，notthatI
shallbedisappointedifyouarenotconverted;forIrememberthelongyearsittookmetocomeround;butIshallbemostdeeplydelightedifyoudocomeround，especiallyifIhaveafairshareintheconversion，Ishallthenfeelthatmycareerisrun，andcarelittlewhetherIeveramgoodforanythingagaininthislife。
Thankyoumuchforallowingmetoputinthesentenceaboutyourgravedoubt。（Astotheimmutabilityofspecies，’Origin，’Editioni。，page310。）Somuchandtoomuchaboutmyself。
IhavereadwithextremeinterestintheAberdeenpaperabouttheflinttools;youhavemadethewholecasefarclearertome;IsupposethatyoudidnotthinktheevidencesufficientabouttheGlacialperiod。
Withcordialthanksforyoursplendidnoticeofmybook。