"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…
"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…
"Frog Hoppers are ranked under the homopterous sub-order of insects. The name of frog hopper refers…
"Glazing Barrels. A, elevation, showing door of case; C, hoppers for loading; B, section through barrel…
"Granulating machine. A, hopper, with raising arrangement; B, endless band; C, C, C, C, four pairs of…
"Breaking-down Machine. H, hopper; B, endless band; R, rollers; M, boxes to receive meal." — Encyclopedia…
The imago stage of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae…
The imago stage of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae…
The pupa of the Threebanded Grape Leafhopper (Erythroneura tricincta) is an insect in the Cicadellidae…
"Nordenfelt Machine Gun. 1-10, parts of frame; 11, breech plug; 12, striker; 13, extractor; 14, cartridge…
A grinding mill is a unit operation designed to break a solid material into smaller pieces. There are…
"The Common Sand-hopper, Talitrus locusta, which may be met with in thousands upon thousands…
A motor vehicle wheel track sanding device including a sand storage tank, a hoper mounted over a wheel…