The obtaining of quantitative data for economic analysis of changes in the agricultural use of land has been a problem in recent years. Field study is a slow and expensive method of providing information. Usually, it requires several experienced persons to collect the data needed.

As land represents more than half of the investment in agriculture in the United States, it follows that the nature of its ownership is related to the public interest. Our national supplies of food and fiber depend upon the output of the land. Title to it as he wishes.