328 Scientific Intelligence. 
6. Note on the Reéstablishment of Forests in Iowa now in 
progress; Prof. C. A. Warr. (Communicated.)—In the admira- 
ble lecture on Forest Geography and Archeology by Professor 
Asa Gray, published in the August and September numbers of this 
Journal there is a single passing allusion or hypothetical state- 
ment which I om involves an error. I refer to the two closing 
e 94 0 
“The difficulty os, re-foresting Laer ew England coasts, which 
were originally well wooded, is well known. It is equally, but 
probably not more difficult to cosabiah forest on an Iowa prairie 
with proper selection of trees. t is plain that Professor Gray 
intended in those sentences to state the difficulty of pri e. 
only bs me na in order to meet the question, “ Why ha 
the trees not grown where they might have done, and gro 
_— sie they have been destroyed ?” ; and in the peated 
aragraph on the same page he ‘in = athe a correct and concise 
oo of the true pole status of 
ew of the grand facts and generalizations presented in that 
lictite the objection here. raised is very insignificant, but the 
or propagated from the seed. Wherever the annual fires have 
been prevented effort $ made to prevent the 
growth of forest trees, they have rapidly taken possession of 
originally rfaces and changed them to dense forests 
fo 8 area has been increasing ever since its first 
settl ite my even beyond the amount consumed, and 
it is sate Mp eigen de , both by natural growth and arti- 
ficial propa he latter may be so readily ae 
this point strike me as not only sagaci ious, but strictly true. “o 
am disposed, on general considerations, to think that the line of 
demarkation between our wood our plains is not W it 
was drawn by nat suspect that the irregular 
border line may rendered more irregular, a “a 
7. Entomolog sip nee sm No. IV; wh J. A. Lintner. 
(Printed in advance from the Thirtieth Annual Report on the 
are upon a “hair-worm” (Mermis acuminata) parasitic on the 
apple-worm larva, the new carpet-bug, and the grape-seed fly. 
