How technology makes 1936 differ from 1836; effect of technology on agriculture; people on farms supporting people in towns, etc.; what corporate farming might do; distribution of gains; land owner favored against tenant, etc.; technology may give highly efficient commercial farms and at same time peasantry; would ruin family-size farm, increase tenancy; disadvantaged farmers may not understand true nature of forces against them (like cottage handicraft workers of England ); better to direct efficiency than try to stop it; adapt science and machinery to kind of agriculture we wish to see; electricity on farm; drought is interstate; what should be done with people and land in drought areas?; can use opportunities for conservation, jobs, etc. or can waste them.