604. THE WHITE COFFEE-LEAF- MINER. 
torches might be carried through the plantations in the evening. 
Thus a crowd of moths, hidden in places to which the light of 
fixed fires could not penetrate, would be attracted, and killed.” 
Although this measure would not be absolutely efficacious, unless 
practised for a long time and together over the whole country, 
which would be dificult to accomplish, yet it would repay all the 
labor expended upon it, if adopted at the time when the moths 
were abundant. 
I will also recommend again the use of Col. Sorsby’s process, 
which I have described at length in my report upon the enemies of 
Maize, drawing the description of it from the Report of the United 
States Commissioner of Patents for the year 1854, Part iii, p. 65. 
l have thus stated all the direct means which have been sug- 
gested for the suppression of these pests. It is evident that —_ 
of them can be adopted without. the expenditure of much time 
and labor. If other measures, less direct, could be employed, 
which would add to the efficiency, or take the place of tham 
already suggested, the benefit would be great. Whatever meas 
ures are employed, however, must be founded upon certain paT 
principles, in order to insure their success. What those principles 
are must first be learned, and then in what detail they can be 
applied. It is only in this way that we can determine — 
there is any mode of opposing our insect enemies which will not 
cost more than it is worth. ; 
Men gain time to advance in civilization and prosperity, 
tering the laws of nature, and converting natural forces into $ 
which do their work automatically as it were. Nature met 8 
vided enemies for the moth whose history we have been pa chs 
Let us only learn how to cherish and encourage these oe 
friends of ours, and they will work for us thoroughly. They 
made to work for us whenever we should learn how basta. Hy 
them. fa 
I recommend that before the picked leaves are burned ae 
placed in an apartment from which the moths cannot ~ o 
there allowed to lie until the insects have developed. if opady 
apartment should be made with sides of glass, and rE ee 
guarded entrance, it would be easy to capture the ae sh 
they rested on the glass, and to liberate them in the Je might 
or transport them to other parts of the country where : oa 
be needed more, At the same time the moths could wee . 
by mas- 
4 
