CARNATIONS. 187 
little variation in the management; 
neverthelefs, fome forts fucceed much 
better by piping than laying, and make 
healthier plants : it requires attention and 
experience to diftinguilh fuch forts from 
the reft. 
It is almoft, or perhaps entirely, im- 
poflible to lay down any rules that will 
not be liable, as circumftances may vary, 
to miflead the inexperienced in the art of 
piping, much muft depend on the dif- 
cernment and prudence of the cultivator; 
there is no great danger to be appre¬ 
hended from taking off the glaffes for 
a few minutes, or half an hour, when 
it is cloudy, and the air rather warm 
and moift ; but if no opportunities of this 
kind occur in due time, it ftiould be 
done early in the morning: and rather 
than to omit doing it entirely, it will be 
better to take the glaffes off, if it is only 
for 
