With 150 horse-power would be of the highest interest, al- they are credited with a surface speed lowing as it would of explaining many of 15 knots, a speed of 9 knots sub- phenomena hitherto enigmatic. Un- merged, and a radius of action of 300 til, however, the existence and prop- miles. It is one… … some days. the boat to keep in motion as long as Fig. 2.—APPARATUS FOR CHECKING AN ELECTROMAGNETIC TREATMENT. The magnitude of the conductivity, it wished to remain submerged. The as well as the regularity in the behavior of the differ- older boats cost about $150,000 each, and the B class is in…
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