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To Give a Blue Color to German Silver or Argentine - p377
doi:10.1038/scientificamerican08141852-377f
Reported Discovery of Anthracite Coal in California - p378
doi:10.1038/scientificamerican08141852-378b
Reaping Machines in England—American Models - p378
doi:10.1038/scientificamerican08141852-378m
Metallic Packing for Stuffing Boxes and Pistons - p380
doi:10.1038/scientificamerican08141852-380a
To Cover Iron with a Coating of Copper - p380
doi:10.1038/scientificamerican08141852-380g
Something Wanted for Engravers - pp381 - 382
doi:10.1038/scientificamerican08141852-381g
