RESISTANCE TO COLD OF THE GUATEMALAN AVOCADO. 
(Persea americana.) 
The freeze of February 3, 1917, at Miami, Fla., subjected the avocados 
at the Plant Introduction Garden to a temperature of 26.5° F. for 
a few minutes. This temperature froze the foliage and twigs of 
the avocado tree of the tender West Indian type but affected those 
of the Guatemalan type much less severely and did not injure at 
all those of the Mexican type. In the illustration Admiral Ross i3 
touching the dead brown leaves of a shoot coming from the West 
Indian seedling stock upon which was budded February 7, 1914, 
the Grande variety of the Guatemalan type. This bud has pro- 
duced a good-sized tree in the three years and scarcely a leaf was 
injured by the freeze. (Photographed by David Fairchild, at the 
Miami Plant Introduction Field Station, Eebruary 12, 1917; 
P20427FS.) 
