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Scientific American, Vol. 57, No. 12 (1887) (1887)

leaf 6

An illustration from Scientific American, Vol. 57, No. 12 (1887), 1887, leaf 6
or Pons-Brooks comet, rediscovered by the following transferring solution : and generally goes on and keeps in view. Thus is de-, writer on September 1, 1883, and having a period of 71 Distilled ‘waters: 20.) 23 Ss egicetac eS eee teens eee seeee 16 oz rived the long list of poor and unsuccessful… … of water is prepared by letting the former soak for THE OLBERS-BROOKS COMET, 1815 AND 1887. are numerous theories afloat as to the cause. One is half an hour and then heating it to about 190°. Care that the recent rains have roiled the water with mud, must be taken to prevent the boiling of the…

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