THE TURN IP-FLY. 
451 
no means be considered as establishing the fact of the immediate 
production of the perfect fly from the egg. If the insect be supposed 
to be vivified by exposure of the earth to the sun, it maybe from the 
chrysalis state. If the chrysalis lie in the earth, its exposure would 
speedily produce the perfect fly; and the fly may still have gone 
through the transformations which entomologists predicate. This 
suggestion of our own is, however, mere suggestion—hypothesis to 
meet hypothesis. Neither Mr. Sutton nor his followers state an ac¬ 
tual observation of the production of the fly immediately from the 
egg; and the partial success which has attended the plan, may have 
arisen from other causes altogether foreign. Supposing even Mr. 
Sutton’s hypothesis to be correct, it is clear that as the insect abounds 
in every field around in a perfect state, and its powers of motion are so 
great, it will not be prevented moving upon the turnip field ; though 
it should be so strewed with the carcases of its famished brethren, 
as to present the appearance of an insect charnel house.” 
The following are a few practical directions drawn from the infor¬ 
mation they have gained. 
1. That, most effectually to insure the speedy growth of the plant, 
the land should be kept in the best possible state of cultivation. 
2. That scuffling or ploughing the land before winter, and clearing 
the hedge bottoms, and every other place which can harbour the in¬ 
sect, should be systematically attended to. 
3. That the fallow should be completed as early as possible, so as 
to give an opportunity for choosing a favourable season for sowing. 
4. That the system of ridging the land, with manure under the 
rows, and drilling on the ridge, be in every possible case adopted. 
5. That the most favourable opportunity for ridging be chosen; 
particularly that the land be not ridged in too dry a state. 
6. That as soon as the land is opened for the manure, it be laid in 
—the ridges formed, and the seed drilled immediately. The quicker 
these operations follow each other, the better chance of the crop. 
7. That the manure chosen be such as will be adapted to the soil, 
and insure the speediest growth of the young plant, and that a full 
quantity be allowed. 
8. That the seed be not deposited in the manure, but the manure 
be thinly covered with soil, and the seed drilled in this soil. 
9. That a very liberal allowance of seed be given, as much as three 
or four pounds per acre, for drill, and six or seven for broadcast, and 
that this seed be of one year’s growth. 
10. That as soon as the plant appears above ground, it be dusted 
