CONTENTS 7 



Page 

 Department Bulletin No. 1261. — Operating Methods and Expense 

 of Cooperative Citrus-Fruit Marketing Agencies — Continued. 

 Packing-house operation — Continued. 



Regular packing-house operations 10 



Grading, sizing, and packing oranges 11 



Grading and packing lemons 12 



Loading orange and lemon shipments 14 



Packing-house labor 14 



Packing-house expense 14 



Average expense 18 



Increases in expense 21 



Variations in expense 23 



Growers' receipts 28 



Expense of distribution 30 



District exchange expense 31 



Expense of the central exchange 31 



Expense of transportation 32 



Wholesale and retail margins 33 



Department Bulletin No. 1262. — Effect of Kiln Drying, Steam- 

 ing, and Air Seasoning on Certain Fungi in Wood: 



Introduction 1 



Previous work 2 



Material used in this study 3 



Methods of study 5 



Cultural methods 5 



Kiln-drying and steaming experiments 6 



Brief summary of the test runs 10 



Air-seasoning experiments 14 



Revival of fungi in wood after air drying 15 



Review of the results 17 



Summary 19 



Literature cited 20 



Department Bulletin No. 1263. — Relative Resistance of Tree 

 Seedlings to Excessive Heat: 



The problem 1 



Literature available 2 



Description of experiments 5 



Preliminarv tests 5 



Plan of tests in 1922 5 



Results in moist air 30 days after sowing 7 



Results in dry air 46, 64, and 90 to 92 days after sowing 9 



Influence of age of seedlings 12 



Temperature scale for each species 12 



Conclusions 13 



Literature cited 16 



Department Bulletin No. 1264. — Forest Planting in the Inter- 

 mountain Region: 



Introduction 1 



Seed collection 2 



Yield from cones 3 



Cost of seed 3 



Nursery practice 4 



Nursery operations 5 



Protection from diseases and injuries 6 



Distribution of planting stock 9 



Field planting 10 



Planting sites and native timber types 10 



Methods of planting 11 



Number of plants per acre 12 



R'-sults of field planting 13 



Causes of loss and failure and methods of prevention 39 



Planting costs 45 



Future of artificial forestation in intermountain region 45 



Sum in. 'try 47 



Appendix 49 



Literature cited 56 





