Identifier: popularsciencemo89newyuoft (find matches)
Title: Popular science monthly
Year: 1872 (1870s)
Authors:
Subjects: Science
Publisher: New York : D. Appleton
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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rial that willbe welcomed,consider thetwo ideas il-lustrated onthis page. Thesidecar illus-t ra ted wasmade fromone wheel ofan old bicycle,some boardsand b a r -iron. The grease-gun is merely a coneof paper which is filled with hard greaseout of which the lubricant can be squeezedas it is wanted. Follow These Rules The following conditions are to be ob-served: (1) Articles must be written on one side of the sheet only. (2) Write your name and address in the up- per right-hand corner of the first sheet. (3) Enclose postage for the return of the manuscript. (4) Dont send in articles on ideas which have already been published. (5) Dont send paper ideas—things that you havent actually done yourself. (6) Address the envelopes containing arti- cles to Motorcycle Contest Editor PoptLAR Science Monihly239 Fourth Ave., New York City The contest will close on December31st, 1916. The money for the prizes will be paidpromptly after the awards have beenmade. 481 4S-; PiipiiJiir Sriciicr MonlhJii
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An outfit for photORraphinR animals from the bow of the boat. A wooden revolving camerabed, larKC cnouRh to carry two cameras, is secured to a ballhcarinR support which is rigid,absolutely noiseless and enables the camcrn to be swung through an angle of one hundred andeighty degrees. When the lantern shines on the animal the Hash-powder may be fired, pro-vided the distance is correct. If desired, one Innip may be fired after the other successively,to show the animal in different positions. This requires two firing lines and two cameras Popular Science Monthly Vol. 89 No. 4 239 Fourth Ave., New York October, 1016 $1..50-Annually Wild Animals That Photograph Themselves PHOTOGRAPHING by flashlight isone of the more recent advance-ments in the field of picture-takingwhich has helped to secure for photog-raphy a permanent place among thearts. Paul J. Rainey, the explorer andhunter of wild animals, proved severalyears ago at the first exhibition of his wildanimal flashlight pictures taken i

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