CONTENTS. 



Department Bulletin No. 908. — The Maine Sardine Industry — Contd. 



Experimental work — Continued. Page- 

 Adding the oil 60 



Processing the sardines 69 



Storing the sardines 70 



Decomposition of the fish 86 



Grading the fish . 93 



Standardization of the sardine pack 96 



Sanitary precautions in packing sardines 98 



Waste in packing sardines: 



Elimination of unnecessary waste 102 



Utilization of unavoidable waste 109 



Economic considerations 115 



Summary 121 



Bibliography 125 



Department Bulletin No. 909. — Utilization op Black Walnut: 



Introduction 1 



Properties of the wood 2 



Insect and fungus attack 6 



Supply 7 



Demand 21 



Utilization by industries 22 



Lumber 22 



Veneer 44 



Ties 58 



Posts 59 



Furniture 61 



Musical instruments 66 



Planing-mill products 67 



Sowing machines 68 



Firearms 68 



Export 74 



War-time utilization 76 



Summary of general market conditions 79 



Marketing walnut timber 80 



Summary and conclusions 85 



Appendix: Detailed list of uses 88 



Department Bulletin No. 910. — Experience op Eastern Farmers with 

 Motor Trucks: 



Summary 1 



Method of study 3 



Location of farms and types of farming 3 



Distance to market 4 



Size of truck 6 



Age of trucks 7 



Are these trucks profitable investments ? 7 



The best size ^ 7 



Advantages and disadvantages 9 



Road hauling with trucks 10 



Road hauling for which trucks are not used 13 



Hauling on the farm with trucks 15 



Custom hauling 17 



Effect of different kinds of roads on use of trucks 17 



Change of market 19 



Annual use of trucks 21 



Life and depreciation of trucks 23 



Repairs 24 



Gasoline and oil 26 



Tires 27 



Reliability 29 



Cost of operation 32 



Cost of hauling with trucks 33 



Saving of hired help 34 



Displacement of horses 35 



Farms on which tractors are owned 36 



