The American Naturalist, Volume 6Essex Institute, 1872 |
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Resultados 1-5 de 57
Página vi
... Tail in Snakes , p . 304. The Affinities of Crinoids , p . 305. Birds New to the Massachusetts Fauna , p . 306. Error in Darwin's Origin of Species , p . 307. Parthenogenesis among Lepidoptera , p . 308. Naturalization of Salmonidæ , p ...
... Tail in Snakes , p . 304. The Affinities of Crinoids , p . 305. Birds New to the Massachusetts Fauna , p . 306. Error in Darwin's Origin of Species , p . 307. Parthenogenesis among Lepidoptera , p . 308. Naturalization of Salmonidæ , p ...
Página 14
... tail first , † to the depth of two to four inches , and of remaining buried in the mud in our western ditches during a time of drought . This habit , perhaps , in a measure fits it for a subterranean life . The occurrence of a fish ...
... tail first , † to the depth of two to four inches , and of remaining buried in the mud in our western ditches during a time of drought . This habit , perhaps , in a measure fits it for a subterranean life . The occurrence of a fish ...
Página 17
... tail , but are not so well defined as those on the head . The skin of the head is of extreme delicacy and is cov- ered by a very thin , loose layer of epithelium . " - WYMAN . " The larger ridges have between twenty and thirty papillæ ...
... tail , but are not so well defined as those on the head . The skin of the head is of extreme delicacy and is cov- ered by a very thin , loose layer of epithelium . " - WYMAN . " The larger ridges have between twenty and thirty papillæ ...
Página 32
... tail appendage of the rattlesnake was not to be explained on the doctrine of natural selection , inasmuch as it could contribute in no way to the advan- tage of the animal . It seemed to me quite clear that it was rather calculated to ...
... tail appendage of the rattlesnake was not to be explained on the doctrine of natural selection , inasmuch as it could contribute in no way to the advan- tage of the animal . It seemed to me quite clear that it was rather calculated to ...
Página 32
... tail appendage of the rattlesnake was not to be explained on the doctrine of natural selection , inasmuch as it could contribute in no way to the advan- tage of the animal . It seemed to me quite clear that it was rather calculated to ...
... tail appendage of the rattlesnake was not to be explained on the doctrine of natural selection , inasmuch as it could contribute in no way to the advan- tage of the animal . It seemed to me quite clear that it was rather calculated to ...
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Palavras e frases frequentes
abundant allied Amblyopsis AMER American angular aperture animal appear arrowheads Asa Gray base birds blind fish bones Botany cave cells character collection color common coral Cretaceous crustaceans described Devonian diameter edge eggs Elliott Coues elytra epidermis eyes fact fauna feet female figured flowers fossil genera genus geology give glacial glass habits head hundred inches Indian insects interesting islands jasper Journal known Lake larva larvæ leaves length lens less male Mammoth Cave Mass ment microscope miles mountains Natural History NATURALIST nearly nest North noticed O. C. Marsh object observed obtained ornithology pamph paper peculiar Plains plants plate portion prairies present probably Prof region remarks represented River rocks says scientific seems seen side South sparrow species specimens stomata stone streams surface tail tion trees valley vegetation wings Wyandotte Cave Zoology