Cyril G. Hopkins: Полный список книг

Cyril G. Hopkins: список всех книг (37)

The sugar beet in illinois - Cyril G. Hopkins

The sugar beet in illinois

Cyril G. Hopkins
Soil fertility laboratory manual - Cyril G. Hopkins

Soil fertility laboratory manual

Cyril G. Hopkins
Soil fertility and permanent agriculture - Cyril G. Hopkins

Soil fertility and permanent agriculture

Cyril G. Hopkins
Laboratory manual for soil fertility - Cyril G. Hopkins

Laboratory manual for soil fertility

Cyril G. Hopkins
The farm that wont wear out - Cyril G. Hopkins

The farm that wont wear out

Cyril G. Hopkins
The story of the soil, from the basis of absolute science and real life - Cyril G. Hopkins

The story of the soil, from the basis of absolute science and real life

Cyril G. Hopkins
The chemistry of the corn kernel - Cyril G. Hopkins

The chemistry of the corn kernel

Cyril G. Hopkins
Soil treatment for peaty swamp lands, including reference to sand and alkali soils - Cyril G. Hopkins

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

Cyril G. Hopkins
Soil treatment for wheat in rotations, with special reference to southern Illinois soils - Cyril G. Hopkins

Soil treatment for wheat in rotations, with special reference to southern Illinois soils

Cyril G. Hopkins
The fertility in Illinois Soils - Cyril G. Hopkins

The fertility in Illinois Soils

Cyril G. Hopkins
For Better crops - Cyril G. Hopkins

For Better crops

Cyril G. Hopkins
Illinois crop yields from soil experiment fields - Cyril G. Hopkins

Illinois crop yields from soil experiment fields

Cyril G. Hopkins
Question summary to accompany Soil fertility and permanent agriculture, - Cyril G. Hopkins

Question summary to accompany Soil fertility and permanent agriculture,

Cyril G. Hopkins
Question Summary to Accompany

Question Summary to Accompany "Soil Fertility and Permanent Agriculture,"

Cyril G. 1866-1919 Hopkins
The Farm That Won.t Wear Out - Cyril G. 1866-1919 Hopkins

The Farm That Won.t Wear Out

Cyril G. 1866-1919 Hopkins
Thirty Years of Crop Rotations on the Common Prairie Soil of Illinois - Cyril G. 1866-1919 Hopkins, Wm G. 1869- Eckhardt, J E. 1869- Readhimer

Thirty Years of Crop Rotations on the Common Prairie Soil of Illinois

Cyril G. 1866-1919 Hopkins, Wm G. 1869- Eckhardt, J E. 1869- Readhimer
Directions for the breeding of corn, including methods for the prevention of in-breeding - Cyril G. Hopkins

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

Cyril G. Hopkins
Question Summary to Accompany

Question Summary to Accompany "Soil Fertility and Permanent Agriculture,"

Cyril G. 1866-1919 Hopkins
The Farm That Won.t Wear Out - Cyril G. Hopkins

The Farm That Won.t Wear Out

Cyril G. Hopkins
The Story of the Soil from the Basis of Absolute Science and Real Life, - Cyril G. (Cyril George) Hopkins

The Story of the Soil from the Basis of Absolute Science and Real Life,

Cyril G. (Cyril George) Hopkins
The Sugar Beet in Illinois - Cyril G. Hopkins, Perry G. Holden

The Sugar Beet in Illinois

Cyril G. Hopkins, Perry G. Holden
Thirty Years of Crop Rotations on the Common Prairie Soil of Illinois - Cyril G. 1866-1919 Hopkins, Wm G. 1869- Eckhardt, J E. 1869- Readhimer

Thirty Years of Crop Rotations on the Common Prairie Soil of Illinois

Cyril G. 1866-1919 Hopkins, Wm G. 1869- Eckhardt, J E. 1869- Readhimer
How Greece Can Produce More Food - Cyril G Hopkins

How Greece Can Produce More Food

Cyril G Hopkins
Peaty swamp lands: sand and

Peaty swamp lands: sand and "alkali" soils

Cyril G. 1866-1919 Hopkins
The Story of the Soil from the Basais of Absolute Science and Real Life - Cyril G. Hopkins

The Story of the Soil from the Basais of Absolute Science and Real Life

Cyril G. Hopkins
The chemistry of the corn kernel - Cyril G. 1866-1919 Hopkins

The chemistry of the corn kernel

Cyril G. 1866-1919 Hopkins
The Story of the Soil; from the Basis of Absolute Science and Real Life - Cyril G. Hopkins

The Story of the Soil; from the Basis of Absolute Science and Real Life

Cyril G. Hopkins

2010
How Greece Can Produce More Food - Cyril G Hopkins

How Greece Can Produce More Food

Cyril G Hopkins
Soil Fertility and Permanent Agriculture - Cyril G. 1866-1919 Hopkins

Soil Fertility and Permanent Agriculture

Cyril G. 1866-1919 Hopkins
Soil Fertility and Permanent Agriculture - Cyril G. 1866-1919 Hopkins

Soil Fertility and Permanent Agriculture

Cyril G. 1866-1919 Hopkins
The Farm That Won.t Wear Out - Cyril G. 1866-1919 Hopkins

The Farm That Won.t Wear Out

Cyril G. 1866-1919 Hopkins
Question Summary to Accompany

Question Summary to Accompany "Soil Fertility and Permanent Agriculture,"

Cyril G. 1866-1919 Hopkins
The Structure of the Corn Kernel and the Composition of its Different Parts - L H. 1872- Smith, Edward M. 1879-1938 East, Cyril G. 1866-1919 Hopkins

The Structure of the Corn Kernel and the Composition of its Different Parts

L H. 1872- Smith, Edward M. 1879-1938 East, Cyril G. 1866-1919 Hopkins

2018
Alfalfa on Illinois Soil - Cyril G. 1866-1919 Hopkins

Alfalfa on Illinois Soil

Cyril G. 1866-1919 Hopkins

2018
Directions for the Breeding of Corn, Including Methods for the Prevention of In-breeding - Cyril G. 1866-1919 Hopkins, Edward M. 1879-1938 East

Directions for the Breeding of Corn, Including Methods for the Prevention of In-breeding

Cyril G. 1866-1919 Hopkins, Edward M. 1879-1938 East

2018
Thirty Years of Crop Rotations on the Common Prairie Soil of Illinois - Cyril G. 1866-1919 Hopkins, Wm G. 1869- Eckhardt, J E. 1869- Readhimer

Thirty Years of Crop Rotations on the Common Prairie Soil of Illinois

Cyril G. 1866-1919 Hopkins, Wm G. 1869- Eckhardt, J E. 1869- Readhimer

2018
The Farm That Won't Wear Out - Cyril G. Hopkins

The Farm That Won't Wear Out

Cyril G. Hopkins