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Spontaneous Combustion of Trees - p378
doi:10.1038/scientificamerican08081857-378
Management and Precise Value of Peat Fuel - p379
doi:10.1038/scientificamerican08081857-379
The National Exhibition of Agricultural Machines - p379
doi:10.1038/scientificamerican08081857-379a
Husking Thimble-Small Invention and Large Profits - p379
doi:10.1038/scientificamerican08081857-379b
Agricultural Machinery and Its Results - p379
doi:10.1038/scientificamerican08081857-379f
Ocean Steam Navigation - p381
doi:10.1038/scientificamerican08081857-381c
Scott's Improved Stereoscope - p382
doi:10.1038/scientificamerican08081857-382