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   C:: Cyril G. (Cyril George) Hopkins : download and read ebooks
A new limestone tester

Alfalfa on Illinois soil

Composition and digestibility of corn ensilage, cowpea ensilage, soja bean ensilage, and corn-fodder

Composition and digestibility of corn-fodder and corn stover

Directions for the breeding of corn, including methods for the prevention of in-breeding

How Greece can produce more food

Illinois crop yields from soil experiment fields

Improvement in the chemical composition of the corn kernel (Volume 55)

Laboratory manual for soil fertility

Lincoln's view of agriculture--1859 (with some Projections by Hopkins--1909) An address ... read before the University of Illinois assembly, Morrow Hall, Lincoln week, 1909

Methods of corn breeding

Nitrogen bacteria and legumes : with special reference to red clover, cowpeas, soy beans, alfalfa, and sweet clover, on Illinois soils

Peaty swamp lands : sand and "alkali" soils

Potassium from the soil

Radium as a fertilizer

Soil bacteria and phosphates

Soil fertility and permanent agriculture

Soil improvement for the worn hill lands of Illinois : with special reference to Southern Illinois

Soil treatment for peaty swamp lands, including reference to sand and "alkali" soils

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