Ice supplements to Hydrographic bulletins.
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| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
[publisher not identified],
1930.
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| Subjects: | |
| Online Access: | Connect to the full text of this electronic document |
| Item Description: | Weekly chart of North Atlantic Ocean showing dates and locations of ice obstructions, and suggested shipping routes. Charts are generally issued from Feb.-Apr. to July-Sept. Electronic resource. |
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| Physical Description: | 1 online resource (1 pages) |