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Difficulty sets a high price upon achievement; and the artist may easily fall into the error of the French naturalists, and consider any fact as welcome to admission if it be the ground of brilliant handiwork; or, again, into the error of the modern landscape-painter, who is apt to think that difficulty overcome and science well displayed can take the place of what is, after all, the one excuse and breath of art charm.
The cetaceans or whales are widely different from all other mammals, but the tertiary Zeuglodon and Squalodon, which have been placed by some naturalists in an order by themselves, are considered by Professor Huxley to be undoubtedly cetaceans, "and to constitute connecting links with the aquatic carnivora."
Unluckily, however, one day Uncle Jack discovered a coal- mine in a beautiful field of Swedish turnips; in another week the house was full of engineers and naturalists, and in another month appeared; in my uncle's best style, much improved by practice, a prospectus of the "Grand National Anti-Monopoly Coal Company, instituted on behalf of the poor householders of London, and against the Monster Monopoly of the London Coal Wharves.
Why, some naturalists even call the American black bear merely a variety of our brown; and, as I said a moment ago, Linnaeus himself believed the Polar to be the same species. This is now known to be an erroneous theory. "You propose, then, to go next to Spain, and kill the Spanish bear?" "We must. Having started in a westerly course by going to Lapland, we must keep on in that direction."
Dohrn's own valuable private collection, and tables for naturalists to work at, furnished with necessary appurtenances, including tanks supplied with a constant stream of sea-water. Sea-fishing and dredging will be carried on in connection with the establishment, to supply subjects for study. Dr.
I invite naturalists to examine whether other flying-fish, for instance the Exocoetus exiliens, the Trigla volitans, amid the T. hirundo, have as capacious an air-bladder as the flying-fish of the tropics. This last follows the heated waters of the Gulf-stream when they flow northward.
Key to North American Birds: containing a concise account of every species of living and fossil bird at present known from the continent north of the Mexican and United States boundary. Illustrated by six steel plates and upward of two hundred and fifty wood-cuts. By Elliott Coues, Assistant Surgeon United States Army. Salem: Naturalists' Agency.
It has often been stated that domestic races do not differ from each other in characters of generic value. I think it could be shown that this statement is hardly correct; but naturalists differ widely in determining what characters are of generic value; all such valuations being at present empirical.
These fresh-water tortoises, the greater number of which are included in the genus Emys of naturalists, are distinguished by having their toes webbed. Some of them live upon animal as well as vegetable food, and those which subsist exclusively on the former, are noted as having the flattest shells. It is generally distributed in the lower parts of Ceylon, in lakes and tanks.
Lucien picked it up and brought it to the camp, where he passed some time in making notes upon its size, colour, and other peculiarities. The owl measured exactly two feet in length from the point of the bill to the end of the tail; and its "alar spread," as naturalists term it, was full five feet in extent.
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