132 ECONOMIC ESSAYS IN HONOR OF JOHN BATES CLARK . — ———-citefi wnership of Land. Land tenure as a part of land economics deals mainly with the human relationships involved in systems of property rights and with the effect of those relationships upon the utilization of natural resources. On the basis of this analysis certain policies of land tenure find general acceptance. From the istorical point of view the evolution of land systems is traced with special emphasis upon the relations between landlord and tenant, the economic effect of enlarging or contracting the sphere of public and private property, and the economic desirability of xtending or curtailing the social side of private property, refer- ring to the public control of private rights to use land. The prevailing sentiment of land economists is distinctly favor- able to private ownership of most types of land, particularly agricultural and urban land, with some measure of public owner- ship and a still larger measure of public control over private rights. The attitude toward tenancy is that public tenancy in hese classes of land is on the whole undesirable, but that some private tenancy is both desirable and normal. Jan Real progress is being made in getting at principles underlying agricultural land tenure. The Bureau of Agricultural Economics of the United States Department of Agriculture and some agri- cultural colleges have made some careful studies in regard to tenure and ownership of farms. The Institute for Research in Land Economics and Public Utilities is conducting very eile and minute inquiries in regard to tenancy and ownership In selected areas, taking, for example, a section where there is pr tically no tenancy and other sections where there is a large amount of tenancy. It has also given some attention to the inheritance of farms. Instead of broad and misleading state- ments to the effect that tenancy is an evil, we know something about its proper place in a desirable system of land tenure and have some ideas as to what may be a desirable amount of tenanc and also as to what is good and bad tenancy. he ideal policy is to encourage home ownership and owner- operation of farms, using tenancy, which is properly regulated in the interests of both tenants and landlords, as a means of reaching the status of ownership. While we do know something about tenancy and home owner- ship in rural districts, we know very little of scientific value about home ownership and tenancy in cities. What proportion