270 



REPORT UPON COTTON INSECTS. 



attractive substance. This structure is mounted on a pole sufficiently 

 high to reach above to tops of the cotton-plants, and is so sensitively 

 poised on a pivot, G, as to turn with the slightest pressure of the wind 

 against the wind-feather F. The wind-shield J stops the current about 

 the light, so that it will burn always with a bright flame. 



The lamp and the reflector are both removable for the purpose of fill- 

 ing with oil or of cleaning. [Patent 134130, dated December 24, 1872. 



Fig. 71 represents a vertical 

 longitudinal section of the in- 

 vention of Mr. George C. Cran- 

 ston, of South Bend, Ind. 



A represents a circular tin 

 vessel, the sides of which may 

 be one or more inches in height. 

 B is a receptacle for the oil, 

 or such other material as may 

 be used for giving light. 



This receptacle is furnished 

 with wick-tube C, which may be 

 divided in several wick-cham- 

 bers, for the purpose of diffus- 

 ing as much light as possible 

 when the device is in actual use. 

 b b represent two pieces of 

 metal, bent at right angles, and secured to the bottom of vessel A, at 

 or near its center, so as to form a recess, or groove, as shown in the 

 drawing. 



The lower portion, or foot of lamp, or receptacle B, is provided with 

 projecting sides, or flanges, and so arranged as to slide in grooves just 

 mentioned. 



The vessel A is supplied with a suitable bail, D, by which it is sus- 

 pended in the branch of a tree, [Patent No. 88140, dated March 23, 

 18G9. 



Fig. 72 shows the device of Mr. Edward D. Pugh, of Fort Plaine, 

 Iowa. 



A A represent a shallow sheet-metal pan, which may vary in form 

 and size to correspond with the form and size of the case. It must, 

 however, always be larger than the case and extend outside and beyond 

 the case which is placed therein. B B B is the glass and sheet-metal 

 case. It may vary in form and size, as desired. The bottom is sheet 

 metal, and has a number of perforations or holes punched in to venti- 

 late. It has short feet attached on the under side and near the corners 

 to keep it above the liquid placed in the pan. The frame is made of 

 sheet metal and in the form of a sash, so as readily to receive and hold 

 the panes of glass, a a represents part of the frame, near the middle of 

 its elevation and extending entirely around the case, with tubes attached 



FIG. 71. G. C. Cranston's lantern. 



