﻿CONTENTS 



Department Bulletin No. 1351. — What Makes the Price of Oats: 



Statement of the problem 1 



Sources of data and scope of analysis 3 



Factors affecting annual price of oats 4 



Production and the area of the market 4 



Trend of prices of oats 6 



Comparison of the values of large and small crops 6 



Application to a cooperative marketing problem 10 



Multiple correlation of price factors 11 



Seasonal variations in oat prices 1 13 



Application of seasonal trend in estimating price 17 



September price as a basis for estimating 18 



Discussion of method 19 



Future prices and condition reports as price indicators 20 



Relation of future prices to cash prices 20 



Relation between crop condition estimates and production 21 



Conclusions regarding future prices 22 



A study of wheat prices 23 



Extent of wheat market and its influence on Chicago price 23 



Notes on method 25 



Appendix A. Statistical tables 27 



Appendix B . Selected references 38 



Department Bulletin No. 1352. — Effect of Age and Development 

 ON Butterfat Production of Register-of-Merit Jersey and 

 Advanced-Register Guernsey Cattle: 



The need for more information 1 



Material used in this study 2 



Increase in production with age 2 



The factor of development 5 



Effect of pregnancy 21 



Recent improvement in production 22 



Summary and conclusions 22 



Department Bulletin No. 1353. — The Efficiency of a Short-Type 

 Refrigerator Car: 



Introduction 1 



First test 4 



Second test 13 



Third test - . _ 17 



Condition of celery on arrival at destination 21 



Ice consumption 26 



Summary 27 



Department Bulletin No. 1354. — The Productiveness of Succes- 

 sive Generations of Self-Fertilized Lines of Corn and of Crosses 

 Between Them: 



Basis for the investigation 1 



The comparison of successive generations 2 



Growing seed for comparison 2 



Method of comparison 2 



Experimental data ■, 3 



Determining the value of individual lines for crossing 10 



Obtaining llif crossed seed 10 



Method of comparison 11 



Experimental data 11 



Discussion 15 



Summary 17 



Literature cited 18 



7W9»J— 28 3 



