Natural Science: A Monthly Review of Scientific Progress, Volumen10

American anatomy ancestors animals annelids appears Arachnida Arthropoda beds biological station birds body Botany British Carbonicola carpels cells characters classification coast cœlom collection colour conclusion condylarths contains Crustacea described eggs elasmobranchs Eocene evidence evolution expedition experiments fact fauna fishes fossils Franz Josef Land fresh-water genera genus geographical Geological geologists give illustrations important insects interesting investigation island known larva larvæ latter lemurs Lepidoptera London marine Markham Sound method migration modifications Museum Nansen Natural History NATURAL SCIENCE natural selection naturalists nephridia North observations organs original paper parapodia pelagic Peripatus physiology plankton plants plates present primitive probably Prof published question recent reference regard remarkable Review scientific Society specialists species specimens structure suprarenal tion Trilobita University variation vertebrates volume Zoological zoologists zoology