Limnology zoologist) and Einar Naumann (a Swedish botanist) co-founded the International Society of Limnology (SIL, from Societas Internationalis Limnologiae). Forel's original definition of limnology, "the oceanography of lakes", was expanded to encompass the study of all inland waters, and influenced Benedykt Dybowski's work on Lake Baikal. Prominent early American limnologists included G. Evelyn Hutchinson, Ed Deevey, E. A. Birge, and C. Juday. Physical properties of aquatic ecosystems are determined by a combination of heat, currents, waves and other seasonal distributions of environmental conditions. The morphometry of a body of water depends on the type of feature (such as a lake, river,
By the Light of the Study Lamp By the Light of the Study Lamp By the Light of the Study Lamp is the first book in The Dana Girls detective series, originally produced by the Stratemeyer Syndicate. It was issued in 1934, as part of a three-volume release in order to test the market for the series. Louise and Jean Dana, orphaned sisters, receive the gift of an antique study lamp as a parcel from their Uncle Ned Dana, skipper of the SS "Balaska", as they are packing to return to their school for a second year. The lamp is stolen from their home only minutes after