Issue 21 and Volume 80.

QUESTIONS AND ANSWERS “He that questioneth much shall learn MUCH”—BACON NOTE—Readers of FIRE ENGINEERING are invited to send in questions, which will be answered in the order received. Names are omitted from questions unless otherwise specified. The Old Puzzle Bobs Up Again To the Editor: Several weeks ago I became interested in a puzzle shown me by representatives of the local fire department which appeared in your magazine quite some time ago. There seems to be no one in this town who has been able to solve it so I am taking the liberty of writing you in the hopes of getting a solution from you. The puzzle is one in which the puzzler is required to connect nine pipe or hose lines from three hydrants to three houses without crossing any of them. Each hydrant has three outlets, one of which must be connected to each of the three…

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