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Six lectures on investigations at Rothamsted Experimental Station, delivered under provisions of Lawes Agricultural Trust by Robert Warington, F.R.S., before Association of American Agricultural Colleges and Experiment Stations at Washington, D.C., Aug. 12-18, 1891 [microform].
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[Washington, D.C.] : U.S. G.P.O., 1892.
1892
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Agricultural investigations at Rothamsted, England during period of 50 years [microform] : six lectures delivered under provisions of Lawes Agricultural Trust by Sir Joseph HenryGilbert, under auspices of Association of American Agricultural Collegesand Experiment Stations in Nov. 1893.
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[Washington, D.C.] : U.S. G.P.O., 1895.
1895
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Results of investigations on Rothamsted soils, being lectures delivered under provisions of Lawes Agricultural Trust,by Bernard Dyer, before Association of American Agricultural Colleges and Experiment Stations at New Haven and Middletown, Conn., inNov. 1900 [microform].
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[Washington, D.C.] : U.S. G.P.O., 1902.
1902
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