Cyril G. Hopkins
b. 1866 – d. 1919 · 68 books
Books by Cyril G. Hopkins
Sugar Beet in Illinois
Sugar Beet in Illinois
Farm That Won't Wear Out
Farm That Won't Wear Out
Structure of the Corn Kernel a
Structure of the Corn Kernel and the Composition of Its Different Parts
Story of the Soil; from the Ba
Story of the Soil; from the Basis of Absolute Science
Story of the Soil from the Bas
Story of the Soil from the Basis of Absolute Science and Real Life
Chemistry of the Corn Kernel
Chemistry of the Corn Kernel
Laboratory manual for soil fertility
How Greece can produce more food
1919 yields from ten wheat fie
1919 yields from ten wheat fields in "Egypt"
Illinois crop yields from soil experiment fields
Illinois wheat yields with nature's fertilizers
A new limestone tester
Du Page County soils
Du Page County soils
Edgar County soils
Edgar County soils
Essentials in large food produ
Essentials in large food production
Why Illinois produces only hal
Why Illinois produces only half a crop
A limestone tester
A limestone tester
Soil Bacteria and Phosphates
Summary of Illinois Soil Investigations
Tazewell County soils
Tazewell County soils
Winnebago County soils
How not to treat Illinois soil
How not to treat Illinois soils
Lake County soils
Lake County soils
Potassium from the soil
Radium As a Fertilizer
Bond County soils
Bond County soils
Knox County soils
Knox County soils
McDonough County soils
McDonough County soils
The Farm That Won't Wear Out
Hardin County soils
Hardin County soils
Peaty swamp lands
Question summary to accompany "Soil fertility and permanent agriculture,"
Shall we use "complete" commer
Shall we use "complete" commercial fertilizers in the corn belt?
The story of the soil, from the basis of absolute science and real life
Clay County soils
Clay County soils
Crop rotation for Illinois soi
Crop rotation for Illinois soils
European practice and American
European practice and American theory concerning soil fertility
Soil Fertility and Permanent Agriculture
Soil fertility laboratory manual
The Story of the Soil
Lincoln's view of agriculture--1859 (with some projections by Hopkins, 1909)
The use of commercial fertiliz
The use of commercial fertilizers
Chemical principles of soil fe
Chemical principles of soil fertility
Phosphorus and humus in relati
Phosphorus and humus in relation to Illinois soils
The fertility in Illinois Soils
Thirty Years of Crop Rotations on the Common Prairie Soil of Illinois
Soil improvement for the worn hill lands of Illinois
Illinois soils in relation to
Illinois soils in relation to systems of permanent agriculture
The duty of chemistry to agric
The duty of chemistry to agriculture
Directions for the Breeding of Corn, Including Methods for the Prevention of In-Breeding
Science and sense in the inocu
Science and sense in the inoculation of legumes
Soil improvement for the Illin
Soil improvement for the Illinois corn belt
Soil treatment for the Lower Illinois Glaciation
Soil treatment for wheat on th
Soil treatment for wheat on the poorer lands of the Illinois wheat belt
The "gist" of four years' soil investigation in the Illinois corn belt
Nitrogen bacteria and legumes
Soil treatment for peaty swamp lands, including reference to sand and "alkali" soils
Investigation of Illinois soil
Investigation of Illinois soils
Methods of maintaining the pro
Methods of maintaining the productive capacity of Illinois soils
Soil treatment for wheat in rotations, with special reference to southern Illinois soils
The structure of the corn kernel and the composition of its different parts
Alfalfa on Illinois soil
Composition and digestibility of corn-fodder and corn stover
Improvement in the chemical composition of the corn kernel
The chemistry of the corn kernel ..
Composition and digestibility of corn ensilage, cowpea ensilage, soja bean ensilage, and corn-fodder
Condenser for extraction work
Oil of corn