Table of contents
Business and Personal
Notes and Queries
Index
Patent Notes
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The Professional and Practical Engineer - p208
doi:10.1038/scientificamerican10051889-208a
The Nickel and Copper Mines at Sudbury, Ontario - pp208 - 209
doi:10.1038/scientificamerican10051889-208b
The Evans System of Frictional Gearing - p210
doi:10.1038/scientificamerican10051889-210b
An Improved Price Indicator for Scales - p211
doi:10.1038/scientificamerican10051889-211a
The Remington-Lee Military Magazine Rifle - p211
doi:10.1038/scientificamerican10051889-211b
An Improved Band Cutter and Feeder - pp211 - 212
doi:10.1038/scientificamerican10051889-211c