CONTENTS 
PAGE 
Summary 5 
Reserve Food of Seeds 9 
Sprout Value of Different Grades of Seed 10 
Relative Sprout Values of Different Grades of Seed Wheat . . 10 
Loss of Seed Substance thru Respiration 20 
Relation of Size and Sprout Value of Seed to Yield at 
Different Depths of Planting 23 
Competition between Plants of Cereal Crops 26 
Effect of Competition between Plants Grown from 
Seeds Differing Markedly in Size and Sprout Value 27 
Effect upon Total Yield of Competition between 
Large and Small Seeds 33 
Effect of Competition between Varieties 38 
Relation of Size of Seed to Yield of Cereal Crops 43 
Methods of Investigation 43 
Relation of Size of Seed to the Yield of Wheat When 
the Various Grades Are Planted Alone in Equal 
Numbers 44 
Why Small Seeds Yield Less per Acre than Large Seeds 
When Planted in Equal Numbers at the Normal 
Rate for the Large Seed 47 
Relative Yields from Large and Small Seeds of Cereals 
When Planted in Equal Numbers and at Equal 
Weights 49 
k Relative Yields of Seed Grades of Wheat and Oats 
" AS Separated by Fanning Mill 53 
Historical Summary of Investigations with Grades of 
Small Grain Seeds 58 
Bibliography 71 
