Popular science monthly . A Telephone Index Wliich Works on thePrinciple of a Roller Shade Has Been Puton the Market by a Boston Consists of a Coiled Spring in a TubularMetal Case, Which is Clamped to thePedestal of a Desk Telephone, and a Rollof Paper Ruled Off Most Conveniently A Chicago Firm Is Placing on the MarketArticles Coated with a PhosphorescentSubstance. Match - Boxes, Key - Holes,Clock Faces and Electric Switches AreTreated. If Submitted to Light Dur-ing the Day They Will Shine All Night The Ice Pick Illustrated Below Is Madeof Separable Parts. The Handle IsProvided
Popular science monthly . A Telephone Index Wliich Works on thePrinciple of a Roller Shade Has Been Puton the Market by a Boston Consists of a Coiled Spring in a TubularMetal Case, Which is Clamped to thePedestal of a Desk Telephone, and a Rollof Paper Ruled Off Most Conveniently A Chicago Firm Is Placing on the MarketArticles Coated with a PhosphorescentSubstance. Match - Boxes, Key - Holes,Clock Faces and Electric Switches AreTreated. If Submitted to Light Dur-ing the Day They Will Shine All Night The Ice Pick Illustrated Below Is Madeof Separable Parts. The Handle IsProvided with Jaws Which Clamp Tightlyor Release the Three Removable Picks
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Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
