MARK RIGELS LANTERN. 



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projecting, round, or oblong windows, arranged around it so as to throw 

 the rays of light in all directions, and with a subjacent circular dish to 

 receive some liquid. It also consists in the application thereto of a 

 series of vertical plates, one arranged between each pair of windows, to 

 serve as reflectors for spreading the light, and also as guides to conduct 

 the insect down into the liquid. It also consists in cup-shaped windows, 

 made round or oblong and detachable, so as to be conveniently and easily; 

 cleaned. 



FlG. 74. Mark Rigels' lantern. 



A represents the body of the lantern, which is preferably made round 

 and provided on its sides with the projecting windows B, which may be 

 made round or oblong, as shown, and with glass or metallic sides. C is 

 a circular dish placed about the bottom and top of lantern body, and 

 above and beneath the windows. The device operates very well with 

 the lower dish only. D is a series of vertical plates or reflectors. When 

 the projecting windows are made of glass the light strikes laterally 

 upon these plates and is reflected in many directions. The windows 

 B will need to be cleaned at suitable intervals, and to facilitate this 

 operation I make each of them in two parts, 6 &', one of which is easily 

 slipped over the other or removed therefrom. 



The operation of this device is as follows: The lantern is placed in 

 18 C I 



