Record Details
pages 52-53
Oregon Digital
| Field | Value |
|---|---|
| Identifier | ORU_WTXT_025aa http://oregondigital.org/u?/wwdl,300 |
| Title | pages 52-53 |
| Relation | The Columbia Unveiled |
| Date | 2004-07-06 |
| Rights | This item is in the public domain. Acknowledgement of the University of Oregon Libraries as a source is requested. |
| Type | page |
| Format | Scanned from originals using Silverfast AI 6.0 on UMAX Powerlook III flatbed scanner. Scanned images saved as 16 bit grayscale tiffs. 117,837 bytes 8 bit - Gray Gamma 2.2 - grayscale Omnipage 14 used to OCR 8 bit grayscale tiffs and generate text files for full text access. 16 bit grayscale tiffs edited in Photoshop 6.0: cropped, rotated, reduced in size, levels adjusted from 0 - 1.00 - 255 to 0 - 1.00 - 249, bit depth reduced to 8 and JPEGs created. |
| Description | rivers that he explored. For this purpose he carried with him a sextant, chronometer, and magnetic compass. His method of making surveys was to establish an astronomical station and definitely determine its location by meridian altitudes of the sun for latitude, and by lunar distances for longitude. With this station as a starting point, as he navigated or followed a stream, each course of it was taken with the compass, and its length, from bend to bend, was estimated either by eye or by the... |
