44 
THE DISPERSION OF THE GIPSY MOTH. 
^£ms\J/ dan- ^tvERLY J-^KJ?^— .c^y / I 
p L YMOOTM 
Fig. 4. — Map showing: location of towns and cities in New Hampshire and Massachusetts 
where scouting records have heen consulted to compare the relation of infestation to 
wind spread. (Original.) 
