Thomas Jefferson's Pocket Ivory Notebooks : 無料・フリー素材/写真
Thomas Jefferson's Pocket Ivory Notebooks / ChrisL_AK
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | "Among his collection of pocket-sized devices were scales, drawing instruments, a thermometer, a surveying compass, a level, and even a globe. To record all these measurements, Jefferson carried a small ivory notebook (pictured) on which he could write in pencil. Back in his Cabinet, or office, he later copied the information into any of seven books in which he kept records about his garden, farms, finances, and other concerns; he then erased the writing in the ivory notebook."source: www.monticello.org/site/jefferson/i-rise-sun |
| 撮影日 | 2013-08-23 16:43:21 |
| 撮影者 | ChrisL_AK , Fairbanks, USA |
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