the_variation_of_animals_and_plants_under_domestication

the_variation_of_animals_and_plants_under_domestication

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时间:2018-09-08

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1、TheVariationofAnimalsandPlantsunderDomesticationVolumenICharlesDarwinWorkreproducedwithnoeditorialresponsibilityNoticebyLuarnaEdicionesThisbookisinthepublicdomainbecausethecopyrightshaveexpiredunderSpanishlaw.Luarnapresentsithereasagifttoitscus-tomers,whileclarifyingthe

2、following:1)Becausethiseditionhasnotbeensuper-visedbyoureditorialdeparment,wedisclaimresponsibilityforthefidelityofitscontent.2)Luarnahasonlyadaptedtheworktomakeiteasilyviewableoncommonsix-inchreaders.3)Toalleffects,thisbookmustnotbecon-sideredtohavebeenpublishedbyLuarn

3、a.www.luarna.comINTRODUCTION.Theobjectofthisworkisnottodescribeallthemanyracesofanimalswhichhavebeendomes-ticatedbyman,andoftheplantswhichhavebeencultivatedbyhim;evenifIpossessedtherequisiteknowledge,sogiganticanundertak-ingwouldbeheresuperfluous.Itismyinten-tiontogiveu

4、ndertheheadofeachspeciesonlysuchfactsasIhavebeenabletocollectorob-serve,showingtheamountandnatureofthechangeswhichanimalsandplantshaveunder-gonewhilstunderman'sdominion,orwhichbearonthegeneralprinciplesofvariation.Inonecasealone,namelyinthatofthedomesticpigeon,Iwilldesc

5、ribefullyallthechiefraces,theirhistory,theamountandnatureoftheirdifferences,andtheprobablestepsbywhichtheyhavebeenformed.Ihaveselectedthiscase,because,asweshallhereaftersee,thema-terialsarebetterthaninanyother;andonecasefullydescribedwillinfactillustrateallothers.ButIsh

6、allalsodescribedomesticatedrabbits,fowls,andducks,withconsiderablefulness.Thesubjectsdiscussedinthisvolumearesoconnectedthatitisnotalittledifficulttodecidehowtheycanbebestarranged.Ihavedeter-minedinthefirstparttogive,undertheheadsofthevariousanimalsandplants,alargebodyo

7、ffacts,someofwhichmayatfirstappearbutlittlerelatedtooursubject,andtodevotethelatterparttogeneraldiscussions.WheneverIhavefounditnecessarytogivenumerousde-tails,insupportofanypropositionorconclu-sion,smalltypehasbeenused.(Hereshownwith[].)Thereaderwill,Ithink,findthispla

8、naconvenience,for,ifhedoesnotdoubtthecon-clusionorcareaboutthedetails,hecaneasilypassthemover;yetImaybepermitt

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