276 
for its scientific interest, surely the Michigan forests are equally 
deserving. 
Th d 
" 48 fe £ an th lot 
th 
the trees. It also means the immediate « eee for that 
locality, of numerous other plants and an The coral-root, 
r ts, on the other 
after a reasonable amount of forest clearing. Thi is statem a 
ek develoguients during twelve years’ experience with the 
ion 
The bogs of northern Michigan shelter a surprising number 
all directions through the bog, and these are at once occupied 
by thousands of plants, among which may be found far more of 
the rarer species or of those with beautiful flowers than in the 
¢ 
arbor-vitae bog, is bordered with hundreds of plants of the wood 
lily (Lilium piladelphicun). Pak anes it seems to have grown 
est at the very margin of these swamps where they open out on 
the sandy beach of a lake. Ti is quite probable that they have 
increased a hundred-fold since man began his operations in that 
region. 
But numbers may be a aca aaaa Ae for the very aes nce 
of these plants leads to their downfa In one bog near the 
e least accessible parts of the bog. The others have been ex- 
