. Marvels of insect life [microform] : a popular account of structure and habit. Insects; Insectes. 7« Marvek of Insect Life. iil«av> fcrmiii^: llir n« k>. of tU- U<Um: liixrts. tluniKl, .â s,,i.(lin^'lv numerous n ilry land, ami lli-ir an «> (raKili' lliat an not calrulaud to stand tlio rou((h and tumble of smh a priKess; so thaf «!⢠ma\' (oniludc that tlu' fossil Inserts that have Ix-en found .an r"v us onlv a of a f.'w of the forms that ni â|,i ! on th.' larth. Hut althimKh this rcord will not enab
. Marvels of insect life [microform] : a popular account of structure and habit. Insects; Insectes. 7« Marvek of Insect Life. iil«av> fcrmiii^: llir n« k>. of tU- U<Um: liixrts. tluniKl, .â s,,i.(lin^'lv numerous n ilry land, ami lli-ir an «> (raKili' lliat an not calrulaud to stand tlio rou((h and tumble of smh a priKess; so thaf «!⢠ma\' (oniludc that tlu' fossil Inserts that have Ix-en found .an r"v us onlv a of a f.'w of the forms that ni â|,i ! on th.' larth. Hut althimKh this rcord will not enabli us tc, trac.' tlu evolutionary of the rac.' .)f Inserts, it is yet full ..f as ! th. aiitupntv .)f Iertam ty i«s. The earliest forms of Inserts â.â mav presunu- were a> .lihrate as our mixhrn spriuK-tails and bristle-tails, whuli have n.) parts, and wvrv httl.' to leav fiKsili/ed remains. It has n claim.'.! that certain in ro<ks so ancient as the silurian are those of primitive Insert- but this view is ontested by some of the best autlioriti. s. The earliest undoubted Insects are found in th.' carboniferous r.»-ks which are of (jreat classed by«eoloKists .nni.,n(,' the primar\. .ir ,, This was the ajjc of the coal-formation, and 'om these rocks, both in liuropc and in North America, numerous fossil Insects have be n .)btained. These carbn Insects ."oiiii to our ctx-k- roaches in structure They had four win^s ' i similar si/e ,ind shape, but all transparent, like the four wind's of a ter mile. In the .'(H-kroach, it will be ir- . . niemb»'red, the lirst pan oi winps ar.' thickened and opaque. In the carboniferous cockroach not .)nlv are all the win^s similarly transparent, but they also aRree in having five nervures. Now th.' miKlern corder to which the . belong is .ertainly among the most an
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1915
