TABLE OF CONTENTS. 



PAET I. 



PAGE 



History of the Hop 1 



PAET II. 

 The Hop Plant. 



Introductory 11 



The Boots 13 



The Stem and Leaves 14 



Inflorescence and Flower 17 



Inflorescence and Flower of the Male Hop .... 18 



Inflorescence and Flower of the Female Hop ... 18 



The Fruit and its Glandular Structure 21 



The Fruit and Seed 21 



Propagation and Selection of the Hop 27 



Varieties of the Hop 33 



1. Red Hops 34 



2. Green Hops 35 



3. Pale Green Hops 35 



. Classification according to the Period of Eipening ... 36 



1. Early or August Hops 37 



2. Medium-early Hops 39 



3. Late Hops 41 



Injuries to Growth 41 



Malformations' 41 



Diseases produced by Conditions of Soil and Climate . 45 



1. Leaves Turning Yellow ...... 45 



2. Summer or Sun Brand 46 



3. Cones Dropping off 47 



4. Honey Dew 47 



5. Damage from Wind, Bain and Hail .... 48 



Vegetable Enemies of the Hop 49 



Animal Enemies of the Hop 52 



Beneficial Insects on Hops 62 



