40 
Psyche 
[March 
years, seventy thousand dollars of which became available 
in August, 1930. Extensive operations were started im- 
mediately, and at the present time over 1,000,000 feet of 
ditches have been dug and the worst breeding areas elimi- 
nated. By May, 1931, it is estimated that an additional 
500.000 feet will be completed. 
In addition to these projects the State of Massachusetts 
through its Department of Public Works has built a dike, 
3.000 feet long and about five feet high, across Race Run 
at Provincetown, on the tip of Cape Cod. This dike now 
prevents the tide waters from reaching an area six hundred 
acres in extent, formerly known to be a prolific breeding- 
place of salt marsh mosquito. The cost of construction 
of this dike was assumed by the State, being on land owned 
by the Commonwealth. In this case, through its Depart- 
ment of Public Works, and also through its Reclamation 
Board, the State of Massachusetts again has shown her 
foresight in taking advance steps toward the comfort and 
prosperity of her citizens. 
