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abundant Academy American ancient ancient Pueblos animals appear Arctic birds body bones butterflies cells coast color Colorado containing Coryphodon Cretaceous Crustacea deposits diatoms distribution domestic turkey east eggs exhibited existence explorations fact fauna feet female Figure fishes flora flowers formation fossil gemmules genera genus Geographical geological geologist glacial habits hundred imaginal discs inches Indian insects interesting Island Key West Killingworth Lake land larva Lepidoptera locust loess male mammals mass microscope migrations miles Miocene Mountains Naturalist northern object observed occur organs origin palaeontology paper peculiar period petals plants plates Pliocene portion present probably Prof Professor recent region River rocks sand scientific sections seen sepals shells side Society species specimens stone structure surface Survey Tertiary theory tion trees tribes uniformitarian valley vegetation W. H. Dall West zoology
Page 170 - Bulletin, No. 23. On some Extinct Reptiles and Batrachia from the Judith River and Fox Hills Beds of Montana. By ED Cope. (Extracted from the Proceedings of the Academy of Natural Sciences of Philadelphia, December, 1876.) 8vo, pp. 20. Half Hours with Insects. By AS Packard, Jr. Boston : Estes & Lauriat. 1877. 12mo, pp.
Page 718 - and elegant patterns are arranged and exhibited as if for display. Hence, I am led to believe that the females prefer or are most excited by the more brilliant males ; for on any other supposition the males would, as far as we can see, be ornamented to no purpose
Page 212 - matter of the very greatest importance that our theories of things, and even of things that seem a long way apart from our daily lives, should be as far as possible true, and as far as possible removed from error. It is not only in the coarser practical sense of the word utility, but in this higher and broader sense,
Page 102 - Are turned tis known to living fowls soon after. So rotten planks of broken ships do change To Barnacles. O transformation strange ! 'T was first a green tree, then a broken hull Lately a mushroom, now a flying gull.
Page 204 - fitted out to launch away upon those placid streams and sunny lakes stocked with all kinds of fish and waterfowl, which are prepared in the next world for those who have acquitted themselves as good sons, good fathers, good husbands, and, above all, good fishermen during their mortal sojourn.'
Page 465 - of a more complex organization only at a later period. The course of the earth's development and that of its organic inhabitants was continuous, not interrupted by violent revolutions. . . . The simplest animals and the simplest plants, which stand at the lowest point in the scale of organization, have originated and still originate by spontaneous generation.
Page 217 - have walked through a quarter of a mile of animals well stuffed, with their long names written out underneath them; and, unless your experience is very different from that of most people, the upshot of it all is that you leave that splendid pile
Page 718 - p. 316). I am not aware that any one has ever maintained that the brilliant colors of butterflies have "commonly been acquired for the sake of protection," yet Mr. Darwin has himself referred to cases in which the brilliant color is so placed as to serve for protection ; as, for example, the eye-spots on the
Page 658 - undergoes slight changes, almost any color can be produced. This is believed to be the origin of many of the glossy or metallic tints of insects, as well as of those of the feathers of some birds. The iridescent colors of the wings of dragon-flies are caused by the superposition of two or more transparent
Page 210 - the sciences which deal with living matter into one whole, and of dealing with them as one discipline. In fact, I may say there were three men to whom this idea occurred contemporaneously, although there were but two who carried it into effect, and only one who worked it out completely. The persons to whom I refer were the eminent physiologist Bichat,