175 
Location in unusually windy and exposed places, etc. 
summer drought followed by copious rains during the fall 
s often aa for the production of immature tissue sus- 
een 
lants growing in the drainage of cesspools are likely to be 
affected by cold owing to the production of unripened wood. 
etc., are affe y ordinary cold. n the other hand, plants 
that are native furt orth, such as the Labrador tea, fre- 
quently suffer some winter injury in our latitude when grown 
out of their natural environments amp species transplanted 
to relatively dry soil suffer more from drought and low winter 
temperatures than those grown in their normal habitat. Many 
native plants are winter-killed bad hen grown on the north 
‘ow mor un- 
dantly in the north is apparently not connected with ae 
requirements. 
Some i injury to vegetation is generally caused by sno 
that which occurs from the overloading 
w and 
re) ancnes. 
are often killed when buried in snow banks and 
) 
ai w 
“frost-cracks,” ‘‘sun-scald,"’ ‘‘sun-scorch"’ and nzing. 
