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PATENT HIVES—FRAMES. 31 
16.—The Munn Hive of 1851 
Munn’s Movable Frames.—In the preface to the pamphlet from 
which Mr. Langstroth quotes, as before 
cited, Mr. Munn says he has “ very mate- 
rially simplified the construction of the 
Bar-frame Hive, by forming the ‘ oblong- 
bar-frames’ into ‘triangular-frames, and 
ee eae Oh, 
be - : 
ae back Pan 
mode of using his movable frames may 
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