PHILOSOPHICAL SOCIETY
Members of the; Technological section of the Philosophical Society met last night, Mr. S. H. Jienkinson presiding. - Mr ; R. E. Robertson read a highly technical paper on the Westinghouse brake, illustrating Ms remarks by many diagrams and sketches.'. ■ • ;
Mr. F, W, Furltert, superintending engineer of the Public Works. Department, read a-short; paper on "Evaporation from Manoburn Dam, in Central Otago," The paper gave the details of the evaporation which actually takes, place at the point the water is stored, also in the Ida Valley, where irrigation is being carried on.. The evaporation was obtained by actual measuring of the 'bulk by which the reservoir, decreased day by day, and not .by any inferential method. The observations-showed that the evaporation was greater than the rainfall, and the results were found to be_ reasonably consistent with, those ob-' tajned in other similar arid regions, and as far as they have gone show thai the assumption on which the irrigation works have been based was reasonably correct.
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Bibliographic details
Evening Post, Volume XCVIII, Issue 38, 14 August 1919, Page 3
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166PHILOSOPHICAL SOCIETY Evening Post, Volume XCVIII, Issue 38, 14 August 1919, Page 3
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