By Mr. John Mearns. 



257 



The angle lights at the ends of the house are attached to 

 the upright wood work of the framing, by hinges, and 

 open from within by means of long iron handles, 

 which being perforated, can be fixed in any part 

 on a pin, and thus afford such extent of opening as 

 may be convenient. The in sides of these apertures 

 are covered by canvas stretched on a frame, to ex- 

 clude the wasps when the lights are thrown back. 



HH. Two of the angle lights open. 



I. One of the angle lights closed. 



K. The angle light removed, to shew the aperture covered 

 by canvas stretched on a frame. 



VOL. IV. 



