e transmitter tube con- preliminary experiments at the United States Artillery taining carbon bisulphide and wound with magnet School, Fortress Monroe, Va., in measuring the velocity wire; Ais the analyzer, in front of which is a lens to of projectiles from the new 38°2 inch B. L. field rifle… … storing the the law of va- current. Be- riation of the fore firing, the velocity of a current passes only through the screen, X’, because of being crossed, so that no light emerges from the ana- projectile near the muzzle of a gun. From measure- an insulating plug placed bet ween the jaws of the…
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