146 



Seetions in Frames. 



from one tier of sections to another, as do the narrower top and 

 bottom-bars of the sections, from those below to those above. 

 Captain Hetherington tells me that Mr. Quinby used these 



Fig. 59. 



Gallup Section-Front. 



years ago. The tin arrangement, though unlike Mr. Wheeler's 

 (Fig. 64, Jf), would be readily suggested by it. It is more 

 trouble to make these frames if we have the tins set in so as 



Fig. 60. 



Perforated Zinc Division-Board. 



just to come flush with the edge of the end-bars of the frames, 

 but then the frames would hang close together, and would not 

 be so stugk together with propolis. These may be hung in the 



