Manual training--play problems; constructive work for boys and girls based on the play interest (1917)
Marten, William Samuel, 1877- · New York, The Macmillan company · leaf 56
e, and their weight will make the lid tip, and cause the rodentto be dumped into the barrel. One side of the lid should be slightlyheavier than the other, so that the lid will comeback into position. Thiscan be made by fastening a weight under one side, or by pivoting thelid very slightly out of… … STOCK FOR-FIGURE FOUR TRAP I TRIGGER y% X H X8% I UPRIGHT H. * =»/fc X Sjf6 J CftTCH AT X% X 5>4.
Manual training · Toys · Games
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