which were successful in experiment, is that the chem- icals employed in experimenting were the pure reagents of the analytical chemist, while those used in practice contain many impurities which must necessarily alter the results ar- | rived at by purer supplies. One of the oldest and best known… … remains on the surface. It is claimed that in this process the alum and sulphate of iron enter deeply into the fibers of opened and closed without removing the bead, and can be the wood, and form indestructible compounds with the Further information regarding this novel device may be closed…
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