ok place. Then came the four armored cruis- tions per minute. All the air should be ex- ers "Victoria Luise," "Hertha," "Dresden," and pelled from the two vacua F, in order to obtain the vacuum last named. This is effected when "Bremen," representing Germany. Astern of Various positions assumed by… … The theory upon which the latest battleships cury takes up a position 16 millimeters higher. of our own and modern navies are being de- Fig. 1.—The Vou Reden vacuum pump and gage. As, however, the atmospheric pressure in the signed, and according to which the crews are bulb to be exhausted is…
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