Sections in Frames. 



14? 



from ^ne 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-Jfront. 



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

 (Fig. 64, M ) , 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 stuck together with propolis. These may be hung in the 



