United States Department of Agriculture
Agriculture Information Bulletin 410
This is a reprint of Part 4 from the 1977 Yearbook of Agriculture,
_Gardening for Food and Fun_. The Yearbook may be purchased at
government bookstores or ordered from the Superintendent of Documents,
U.S. Government Printing Office, Washington, D.C. 20402. Original page
numbers from the entire book are used in this reprint.