Show THE THEORY OF EVOLUTION how the ide of the variability of came to iralu lu As long ago as july young barwin SS of ago hod opened private journal in which ho purposed to record all facts that camo to him which seemed to havo any bearing on the moot point of the doctrine of transmutation of species four or alve years earlier during i the course of that famous trip around the with admiral fitzroy as natural to tho beagle dla and isy lo the pors oual which first tended to shako his belief lu the fixity of jn south america IQ the tUI formation ho had discovered great fossil animals cowed with armor like that on the and had been struck will this similarity of type between ancient and en isling faunas of the samo llo was ulso greatly impressed by abo manner in which closely related epo cles of animals were observed to replace one another as he proceeded southward over tho continent and by tho south Amerl cna character 0 most of the productions of abo galapagos archipelago and more especially by the manner in which they differ on each island of the group none of the islands appearing to be very ancient in ft geological benso at first the full force of choso observations did not strike him for under sway of lyells geological conceptions ho ton 1 natively tat ively explained the relative absence of life on one of the galapagos islands by that perhaps no species bad been created sinco that island arose but gradually it dawned upon him that such facts as he bad observed could only be I 1 explained on the supposition that species gradually become modified modi fled from then on as ho afterward asserted tha subject haunted him it will thus be seen that the idea of the variability of species camo to charies darwin as an inference from personal in tho field not bs a thought borrowed from books henry smith williams M U in harpers |