Polar & expedition maps

Navigation chart south of 20° south latitude

Historical record

J. D. Potter great-circle sailing chart.

What this record establishes

Institutional record documented; does not authenticate interpretations.

Record details

Original title
Chart of South Latitudes beyond 20 Degrees
Artifact date
1858
Holding institution
British Library
Identifier
Maps 88710.(6.)
Record type
individual_artifact

Catalog review date reported: 2026-10-28. This is inherited catalog metadata, not a new verification of the linked source.

Godfray’s 1858 South Latitudes chart — historical reproduction in 1899

Hugh Godfray’s 1858 south-polar gnomonic navigation chart, reproduced as a foldout in the U.S. Hydrographic Office’s 1899 second edition of The Development of Great Circle Sailing. The surrounding text identifies Godfray’s 1858 charts and explains their use for great-circle navigation.

Hugh Godfray, A Chart of South Latitudes beyond 20 Degrees (1858), reproduced in G.W. Littlehales, The Development of Great Circle Sailing, U.S. Hydrographic Office No. 90, second edition (Washington: GPO, 1899), foldout following p. 22. University of California Libraries scan via Internet Archive, SRLF_UCI:LAGE-4476842. Public domain.

This is a historical reproduction of Godfray’s 1858 chart published in 1899, not the British Library’s exemplar or modern scan. Identical edition state is not asserted. The chart’s incomplete Antarctic geography reflects nineteenth-century knowledge, not evidence of hidden lands. The separate course-and-distance diagram is not included.

Image source record · Reuse terms

Image rights and evidence limits

Public domain. Godfray’s chart was published in 1858; the independent reproduction appears in the U.S. Hydrographic Office’s 1899 publication. Internet Archive records the University of California Libraries scan as NOT_IN_COPYRIGHT (US). St John’s College confirms Godfray died in 1877, placing the underlying chart beyond the ordinary life-plus-70 term. The displayed files are faithful reproductions of historical printed pages, not modern British Library photographs.

Image existence does not prove a linked claim. Consult image-specific captions and reuse conditions.

Sources and what they support

Links document the record, the claim’s circulation, an assessment, or reuse terms as labeled. A source link is not automatically corroboration.

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