Table of Contents
A tree is a tree, but upon investigation you would find an almost infinite variety of appropriate trees for Christmas. In color alone no two species or varieties of evergreens are exactly the same. Of the six fundamental colors of the solar spectrum, the foliage of evergreen trees displays green, yellow and blue.
"You and Your Christmas Tree,"
The Iowa Homemaker: Vol. 32
, Article 5.
Available at: https://lib.dr.iastate.edu/homemaker/vol32/iss5/5