RECORD OF SCOUTING IN LISBON, ME. 51 
tyre. The work in Wareham was carried on under the direction of 
C. E. Totman. and C. B. Whitaker, while that in Gardner was di- 
rected by Henry N. Bean. It should be noted at the outset that the 
character of the forest has a great influence on the liability to infesta- 
tion, because if the caterpillars are carried by the wind and dropped 
upon trees upon which they can not feed, no infestation will result. 
Therefore it is to be expected that in sections where coniferous trees 
predominate the chances of new infestation will diminish, even al- 
though the region is in line with the prevailing wind during the time 
the caterpillars are likely to be carried by it. 
RECORD OF SCOUTING IN LISBON, ME. 
On October 23, 1911, the work in Lisbon, Me., w T as begun by Mr. 
C. E. Totman and a crew of experienced scouts, and the territory 
north of the Androscoggin River and east of the Maine Central 
Railroad was examined. This covered about 16^ square miles, about 
40 per cent of which was woodland. The land in this town is rolling, 
and a considerable portion is cleared and cultivated. 
The percentages of the various kinds of trees in the regions scouted 
were estimated by Mr. Totman, as follows : 
Per cent. 
Conifers 40 
Oak 3 
Maple 17 
Ash 7 
Per cent. 
Elm 
2 
Birch 
7 
Beech 
IS 
Miscellaneous 
6 
It will be noted that about half of the food plants (conifers and 
ash) are unsuitable for food for first-stage gipsy-moth caterpillars, 
so that of the 16^ square miles covered only 3^ square miles of the 
area supported trees upon which the gipsy moth would survive if 
it were introduced. The oak, which is the favorite food, comprised 
only 3 per cent of the tree growth. Roadsides in this town 
were scouted in the winter of 1910-11, and nine infestations were 
found in the territory under consideration, a single egg cluster 
being obtained in each locality. These were treated at the time. 
The results of the present scouting showed that no infestations were 
present where eggs were found last year, but 18 new infestations 
were located. Only one of these was in woodland, and in this case 
seven egg clusters were found on the bank of the Sabattus River. 
Thirteen egg clusters were found on trees along the roadside, east 
of the town, and two were located on another road near by. Each 
of the remaining infestations at different points along the highway 
contained a single egg cluster or a pupal case. It is improbable 
that the infestations along these roads resulted from previous in- 
festations, although a few egg clusters may have been overlooked. 
Lisbon is located at least 70 miles from badly infested territory, so 
that bad woodland infestations were hardly to be expected. 
