208 DESTKUCTIVE INSECTS OF VICTORIA. 



rollers ; L, set-screw to spiral spring ; 1, spiral spring to press rollers 

 together when necessary ; N, slats on endless chain with sheet-iron 

 projections to hold the locusts ; M, drag-chain (or strips of light wood) 

 to stir the locusts. 



To use Mr. Peteler's own words : — "This machine is intended for 

 local or State authorities to use on uncultivated lands adjoining farms 

 and unsettled prairies, in order to destroy the insects during the entire 

 season. For that purpose, there should be proper organization, with 

 camp outfit, &c., to follow up the swarms, loading the machines on 

 waggons, and battle with the 'hoppers morning and evening, when 

 they are comparatively sluggish. If they use them only 60 days during 

 the season, and go over only 40 acres per day, destroying but one-half 

 bushel per acre (frequently they would destroy 8 to 10 bushels per 

 acre), they would send 25,000 bushels daily, or 1,500,000 in 60 days, 

 where bad 'hoppers go." 



