Hoffmann, Professor, 1839-1919 · London : Frederick Warne · leaf 349
uzzle of a very novel and ingenious kind; in-deed, we believe it to be unique. At any rate, we have comeacross no other upon precisely the same principle. It consists of a cardboard box, four inches square, withthe top and bottom of glass. The intermediate space is oc-cupied by a metal plate,… … Fig. 452. side of the plate is divided after a similar fashion, but thatthe shape of the compartments is in this case different, thepartitions on this side running in different directions. Thereis no direct communication between the compartments of thetop, or between those of the bottom, each being…
Puzzles
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