Cyril G. Hopkins
1866 – 1919
74 works on record
Works
How Greece can produce more food
1922
A new limestone tester
1917
Soil bacteria and phosphates
1916
Summary of Illinois soil investigations
1916
Radium as a fertilizer
1915
Potassium from the soil
1915
The farm that won't wear out
1913
The Story of the Soil
1913
Question summary to accompany "Soil fertility and permanent agriculture,"
1912
Peaty swamp lands
1912
Soil fertility and permanent agriculture
1910
Lincoln's view of agriculture--1859 (with some projections by Hopkins, 1909)
1909
Thirty years of crop rotations on the common prairie soil of Illinois
1908
The fertility in Illinois Soils
1908
Soil improvement for the worn hill lands of Illinois
1907
Laboratory manual for soil fertility
1905
Directions for the breeding of corn, including methods for the prevention of in-breeding
1905
Soil treatment for the Lower Illinois Glaciation
1905
Nitrogen bacteria and legumes
1904
Soil treatment for peaty swamp lands, including reference to sand and "alkali" soils
1904
The structure of the corn kernel and the composition of its different parts
1903
Soil treatment for wheat in rotations, with special reference to southern Illinois soils
1903
Alfalfa on Illinois soil
1902
Methods of corn breeding
1902
Composition and digestibility of corn-fodder and corn stover
1900
Improvement in the chemical composition of the corn kernel
1899
The chemistry of the corn kernel ..
1898
Composition and digestibility of corn ensilage, cowpea ensilage, soja bean ensilage, and corn-fodder
1896
Soil fertility laboratory manual
Illinois wheat yields with nature's fertilizers
Illinois crop yields from soil experiment fields
For Better crops
Moultrie County soils
The "gist" of four years' soil investigation in the Illinois corn belt
The story of the soil, from the basis of absolute science and real life
Condenser for extraction work
Question Summary to Accompany Soil Fertility and Permanent Agriculture,
Oil of corn
Winnebago County soils
Du Page County soils
Hardin County soils
Lake County soils
Clay County soils
Edgar County soils
Knox County soils
McDonough County soils
Bond County soils
Tazewell County soils
Sugar Beet in Illinois
Structure of the Corn Kernel and the Composition of Its Different Parts
Farm That Won't Wear Out
Story of the Soil from the Basis of Absolute Science and Real Life
Chemistry of the Corn Kernel
Story of the Soil; from the Basis of Absolute Science
Essentials in large food production
Bread from stones
Methods of maintaining the productive capacity of Illinois soils
Investigation of Illinois soils
Chemical principles of soil fertility
The duty of chemistry to agriculture
Phosphorus and humus in relation to Illinois soils
Soil treatment for wheat on the poorer lands of the Illinois wheat belt
Crop rotation for Illinois soils
How not to treat Illinois soils
Science and sense in the inoculation of legumes
Illinois soils in relation to systems of permanent agriculture
A limestone tester
European practice and American theory concerning soil fertility
1919 yields from ten wheat fields in "Egypt"
Shall we use "complete" commercial fertilizers in the corn belt?
The use of commercial fertilizers
Soil improvement for the Illinois corn belt
Why Illinois produces only half a crop
Soil fertility