39 
There is one rather serious point which still remains to be con- 
sidered. It has been shown that three large colonics of the insect 
have been discovered during- the past two years outside of the bound 
aries of the survey of 1891. If such colonies — all of them of at least 
lour years' standing and one of them of at least eight years' standing — 
have only just been found, may there not be others the existence of 
which is still unsuspected by the committee? It is probable that this 
is the case, and it seems to the writer that not only should a warning 
circular be seut to almost every property holder in a border of at least 
two towns deep around the line of 1891 with a request to inform the 
committee of the existence of caterpillars which resemble that of the 
Gipsy Moth, but that a thorough inspection of these same towns with 
as large a force as can be devoted to the purpose should be made in 
the near future. The knowledge of the Gipsy Moth work is now so 
widespread in Massachusetts and people have become so much inter- 
ested in the work that it is not likely that many such colonies will be 
found, yet knowledge as to the existence of every one is an immediate 
necessity. 
O 
