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,
Centre for the Study of the Causes of the War denier, and from 1924 onwards worked closely with Centre for the Study of the Causes of the War. The Centre provided Barnes with research material, made funds available to him, translated his writings into other languages, and funded his trip to Germany in 1926. During Barnes's 1926 trip to Germany he received a most friendly welcome for his efforts as Barnes described it in "seeking to clear Germany of the dishonour and fraud of the war-guilt clause of the Treaty of Versailles". Centre for the Study of the Causes of the War The Centre for the Study of the Causes