Table of contents
February 27, 1869, Volume 20 No 9 pp129-142
About the coverBusiness and Personal
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Improvement in Separating and Concentrating Ores, Grains, Etc. - p129
doi:10.1038/scientificamerican02271869-129
“Modern Engineering”—By the Hon. Wm. J. Mcalpine - p130
doi:10.1038/scientificamerican02271869-130
Greene's Portable Engine, Union Check Valve, and Lubricator - pp132 - 134
doi:10.1038/scientificamerican02271869-132a
Examination of Applications for Patents—The Two Systems Compared - pp135 - 136
doi:10.1038/scientificamerican02271869-135
Land and Water—Are Earthquakes Land Makers? - p137
doi:10.1038/scientificamerican02271869-137
Importance of Accuracy in the Use of Mechanical and Scientific Terms - p137
doi:10.1038/scientificamerican02271869-137a
The Wickedness of Waste.—Value of Bones - p137
doi:10.1038/scientificamerican02271869-137c
Vegetable Oils Used in Painting - pp137 - 138
doi:10.1038/scientificamerican02271869-137d
Bulletin of the National Association of Wool Manufacturers - p138
doi:10.1038/scientificamerican02271869-138
Manufacturing, Mining, and Railroad Items - p139
doi:10.1038/scientificamerican02271869-139a
Recent American and Foreign Patents - pp139 - 140
doi:10.1038/scientificamerican02271869-139d