File:James B. Emerson.png
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:27, 30 June 2020 |  | 1,107 × 1,506 (3.62 MB) | Simtropolitan | clearer print from later edition of same book |
| 16:45, 28 June 2020 |  | 825 × 1,123 (2.46 MB) | Simtropolitan | {{Information |description ={{en|1=A portrait of {{w|James B. Emerson}}, a former sea captain and self-trained hydraulic engineer who went on to design and build the Lowell and {{w|Holyoke Testing Flumes}}, making the mass standardization of American water turbines possible during the {{w|Second Industrial Revolution}}.}} |date =1892 |source =[https://archive.org/details/treatiserelative00emerrich/page/n7/mode/2up Treatise relative to the testing of water-wheels and machiner... |
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