Seientific American, Heo Inventions. the center, E, but a short piece at the back The improved desks of Mr. Woodcock great- inventor has named his plan ‘‘the United States School-room.” part is straight. One arm of the lever, H, is ly diminish the labor of the teacher.” The furnished with a pin, 0,… … fitted to work loosely on the arbor, E, and is The annexed engraving is a ‘perspective cocked by the drawing back of the thumb view of an improved arrangement of desks lever preparatory to the loading of the piece, in school-rooms, for which a patent was grant- being thrown back simultaneously with…
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![An illustration from Thirty plates, proofs of illustrations to the “Household edition” of the works of Charles Dickens.] [1875, 76]](https://img.insideoutlibrary.com/img/200/bl-bl_000930639_4-49-1.webp)
![An illustration from Thirty plates, proofs of illustrations to the “Household edition” of the works of Charles Dickens.] [1875, 76]](https://img.insideoutlibrary.com/img/200/bl-bl_000930639_4-204-1.webp)