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Proceedings of the American Philosophical Society Held ..., Томи 1 – 2
Повний перегляд - 1838
according Africa America animals appear archenteron Asia become beds beginning belong body called cause cells Central character closely connection contains continuous Cretaceous crystals cytoplasm deposits described determined direction distribution division effect eggs entirely equation evidence existence experiments extended fact formation forms genus geographer give given greater important included increased indicated islands Italy known land later less lower male mass material means method mind nature nearly North object observed obtained organic origin Person petroleum Philadelphia plate portion position possible present probably produced Prof reached referred regard region relation remains represented respect river seems seen separated shown side similar Society solution South species stage structure term Tertiary theory tion true United universe Upper whole