24 THE FLORIDA ENTOMOLOGIST 
Having ample top minnows to fully stock, when danger 
threatened, any pond that had previously unexpectedly ‘gone 
dry”, no necessity arose to use dirty, expensive, soil destroying 
oil, or for extensive drainage by ditch or by digging through 
the underlying water-impervious sub soil. A small well dug 
below permanent water level will leave, in dry weather, a place 
where some top minnows will survive until the pond fills again. 
The small amount of work of this kind was done either to 
beautify the place or for agricultural reasons. Nevertheless, 
the cost will be included in the anti-mosquito budget. 
Every species has its natural enemies, and from time to time, 
as these enemies have triumphed, whole species have disap- 
peared. In the case of the mosquito, these enemies are well 
known, and, as I have shown, can be readily increased to the 
point where they will wipe out the mosquito. The cost is 
negligible. The work here was done on a small tract of land 
where the mosquito had every advantage nature could supply 
it. The larger the land area the smaller the cost per acre, and 
the more nearly perfect the result. The upkeep will diminish 
with time and the enlargement of the area treated. 
Anti-mosquito work requires the active cooperation of every 
one concerned. That is the reason why we still have malaria. 
When it is generally known that nature’s balance maintaining 
the mosquito may be altered with a pennyweight sufficiently 
to put dollars in the pockets of the man doing the work, then we 
will get this cooperation. 
The total outlay required to make our home mosquito free 
and to keep malaria off the place was less than two hundred 
and fifty dollars. At the very most, a yearly expenditure of 
fifty dollars will maintain this condition. Mosquito land is usu- 
ally fallow muck, and very valuable when malaria is absent. 
Such land can be bought very cheaply in all of the southern 
states. Practically unlimited quantities of this land can be 
purchased, put in condition for planting, and cleared of mos- 
quitoes, for less than one-crop land costs elsewhere. The farm- 
er can raise ““money crops” over a large part of the year; twelve 
months in Florida. This naturally tends to raise land prices, 
and to remove farming from the list of seasonal occupations. 
There is a tremendous lot of this land on every continent. 
May man occupy it and live in peace and plenty. 
