Excerpts from the report Summary: During the 25-year period, 1930-54, farms have become larger and fewer in number. The total number of census farms has declined by 1.5 million, and there has been an even greater decrease in the number of commercial farms. At the same time, numbers of part-time and residential units have increased rapidly. These part-time and residential farms, which comprised 15 percent of all farms in 1930, accounted for nearly a third of all farms in 1954. Commercial farms - those from which the farm families derive their major source of income from farming - decreased from 4.7 million in1930 to 3.1 million in 1954. More than half of this decline took place between 1944 and 1954. Commercial farms comprised 75 percent of all census farms in 1930 and about 65 percent in 1950 and 1954.