. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. 'A \ 440 rilK ok NKW KN(il,AN!) and Ainericii i* due alt(jji;etlic'r to tlu'ir luncal cliaractor; that tlicir oltih- renc'o on tlio two contincntti, looked at tVoiu a l)road point of view, must 1)0 rejiardcd a.^ the eon.«e(|Uence of a continuity or ehitie proximity of hind (hn'ing later tertiary times wiien a warm elimate prevaih-d in tiw hinh north : and tl"it tl;c distinction lietween them, and even the representatio


. The butterflies of the eastern United States and Canada [microform] : with special reference to New England. Butterflies; Butterflies; Papillons; Papillons. 'A \ 440 rilK ok NKW KN(il,AN!) and Ainericii i* due alt(jji;etlic'r to tlu'ir luncal cliaractor; that tlicir oltih- renc'o on tlio two contincntti, looked at tVoiu a l)road point of view, must 1)0 rejiardcd a.^ the eon.«e(|Uence of a continuity or ehitie proximity of hind (hn'ing later tertiary times wiien a warm elimate prevaih-d in tiw hinh north : and tl"it tl;c distinction lietween them, and even the representation of the same genus oi> the two eontinunts by clearly different species, is due to the sul)se((uent scjiaiation of the two regions in glacial and [)ost glacial times, and the variations which isolation, a difference of climatic condi- tions, and their general euviroiunent have brought about in the lapse of time. lill!(Mil!AI>llV. Tlic lilciiitmv iipuii tlii> ^iiliji'cl i> Inru'cly |Milrniiciil, very Miitk'rcil. mM ijrt'm'nilly Iti'iff. WiiKli |)iiMNli(ui ill 1S04 ill tlic l'i'ciii'i'(lin;:s (if llic Kiituii('ly nf I'liilailclpliiii ii li>t of liiitti'i'llic'^ Miiil ti) lie I'onmioii tn Nditli Aiii(i'ic-;i iiiid tin' (Mil Wmlil; Miisililcr liii» coiisidcriil till' iiinttrr In lii> pa|>('l'soii tlir I,r|ii(lo|it('i':i iil' Lalirailoi', iiiuslly ill tlii' Strttiiit'r t>iitoiiiolui;l.' review iif Ktlwanl-N Itlitlcrllii's. and vaiioil> papers hy Speyer and Miiseliler in tlie sainejiiiinnl ;iNi> di»eii«> il. See aUi. my cDiiiparlsdn (if tlieliiillerlly faiiiiaif'Ssil. titlsril nn Hit' fijil, Vertli'al ril» li— lliaii twelve in niiiiilier (I'ljnuiii'h) atalunta. Vel'tleal rili> inure than twelve in niiinlier {\'"ijiiiriiiiii'is). Kt:>i iHit inure than une-teiitli lil^lier tliaii liruad hlillterH. K^u alioiil line-third higher than limad eariliii. 'I'lilih III' N/i/ Iiilsril nil III! iiili't'iiilliir III hi rill. Ipper liair«


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbutterflies, bookyear