io Making a Garden to Bloom This Year 
and blue. That the three secondary col- 
ors are composed each of a union of two 
primary colors, is, perhaps, less well 
known. The diagram shows this, and 
shows how it is so, and which combination 
makes which. The three larger rings rep- 
resent the three primary colors — red, blue, 
and yellow. The three smaller rings 
represent the three secondary colors — 
purple, orange, and green. Each of these 
secondary rings is opposite or directly 
across from the primary which is its com- 
plementary color- — that is, the primary 
which it does not contain: and it is con- 
