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Scientific American, Vol. 83, No. 20 (1900) (1900)

leaf 4

An illustration from Scientific American, Vol. 83, No. 20 (1900), 1900, leaf 4
are connected with well- materials. The Prussian government took the matter each axle. Oneof this type isshown just coming out of developed trachex. This habit suggests very strongly up and passed very stringent laws upon the subject. that during the last fortnight of its aquatic life the Standards… … is perfectly quiescent on ing radium, 174:1 and 1736 in two cases. There is no the weed, and resumes its means of finding the relative amount of radium and aquatic life exactly where barium in the latter product, but M. Detmargay con- it left off. Nor does this cludes from the spectrum that there…

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