. Science-gossip. Size 3 X Si X 9i Amateurs. PATENTED. THE BIOKAM PROJECTOR, For Projecting, Reuersing and Enlarging, fitted witliOne VOICTLAf^DER Wide ;gle LEfiSand adapted to screw into Leris Flangeof /\HY EX1STI[<C LANTERN.

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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience