y mentioned, mals. which insures its coming into the correct firing posi- The photograph reproduced in Fig. 1 shows the mo- tion. This brings the apparatus into firing position ment the rat prepares itself to enter one of the pigeon- again. The empty cases can be collected, and may be Top view of… … thus defined is in the con- cle of the train is avoid- Entrance side of trap with rat abont to enter. Smaller form of trap with single entrance. stellation Hercules, near ed by means of a relay, the star Nu Herculls. which cuts out the whole BAT DESTRUCTION BY ELECTRIC CURRENT.
Apparatus · Pole · Patents · Munn · North Pole · Scientific American · Sheet metal · Producer gas · Latin America · Gas engines · Horizontal rudder · Triple action · Hot water · Practical treatise
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