CONTENTS 



Department Bttlletin No. 351.- — The Terrapin Scale: An Important Insect 



Enemy of Peach Orchards: Page. 



Introduction 1 



History 2 



Distribution 2 



Economic importance. 3 



Injury 3 



Food plants 4 



Life history 4 



Seasonal history 61 



Mortality 61 



Attendants 62 



Predaceous enemies 63 



Parasites 65 



Sooty molds 66 



Remedial measures 67 



Summary 86 



Recommendations for control 89 



Bibliography 90 



Publications of United States Department of Agriculture relating to insects 



injurious to deciduous fruits 94 



Department Bulletin No. 352. — The Cherry Leaf-beetle, a Periodically 

 Important Enemy op Cherries: 



Introduction 1 



Food plants 2 



Distribution 3 



Economic history previous to 1915 3 



The 1915 outbreak 3 



Feeding habits and destructiveness 5 



Description of stages 6 



Life history 9 



Seasonal-history summary 18 



A predatory enemy 19 



Control..., 19 



Bibliography , 25 



Publications of United States Department of Agriculture relating to insects 



injurious to deciduous fruits 27 



Department Bulletin No. 353. — Moisture Content and Shrinkage of 

 Forage and the Relation of These Factors to the Accuracy of 

 Experimental Data: 



Introduction 1 



General plan of the experiments 2 



Use of samples in correcting forage y eilds 3 



Relation of the stage growth of forage plants to their moisture content 22 



Loss of moisture in forage during the early stages of curing 27 



Variation in the moisture content of growing alfalfa during a single day 31 



Moisture content of baled hay v 31 



Shrinkage of hay after storing and variation in weight due to changes in 



atmospheric humidity 32 



Summary • 36 



Department Bulletin No. 354. — Forests of Porto Rico, Past, Present, 

 AND Future, And Their Physical and Economic Environment: 



Introduction 1 



Physical and economic features 2 



The Forest 21 



Appendices— 



I. Trees of Porto Rico 56 



II. Bibliogi-aphy 98 



3 



