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Scientific American, Vol. 3, No. 2 (1860) (1860)

leaf 3

An illustration from Scientific American, Vol. 3, No. 2 (1860), 1860, leaf 3
, not being able to enter the passage, d, pass through the tubes, H’, of the trap, I, in seeking an ing the parallel bar and placing it above the screw, D. V-space below the point where the bees begin to work can be nearly filled up, and a free passage is also secured It is seldom the case that an… … boats on one of the ponds in By this arrangement, therefore, in Paris, and it has received they will always be in a position elaborate praises from our Paris to meet intruders and defend cotemporaries. - It consists of a conical screw turbine on find entrance into the trap, it may escape through…

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