SO Psyche [Apri 
should be free from this defect and should be of such construction as 
to allow it to be used on very uneven ground. 
Freedom from repugnant odor can be secured by substituting for 
the coal-oil pan a piece of sheet-iron or other flat surface smeared with 
a suitable adhesive substance of which we have at hand an excellent 
one in what is known as “Tree Tanglefoot,” largely used to prevent 
caterpillars of the gypsy-moth and canker-worms from ascending 
trees. A young grasshopper falling upon a surface coated with this 
preparation is there to stay. 
The second need — adaptability to an uneven surface — may be 
secured by constructing the machine in sections, say two-and-a-half 

“Keom above 
wwe 
i 
4 
a= 
ry 
Perspective 

2 
Side elevation Rear elevation 
Fig. 1. For destroying grass-insects on rough ground where the use of kerosene is 
objectionable and the ordinary form of machine cannot be used. Designed by A. P. 
Morse. 
or three feet long, hinged so as to be freely movable on each other, 
thus allowing a much closer approximation to the surface of uneven 
ground than is possible with a rigid pan or plate ten or twelve feet 
in length. ‘The following sketches illustrate such a device, made of 
No. 24 galvanized sheet iron in four sections, with iron or steel runners, 
