{
  "title": "Bowditch (1802): worked examples for a faulty log, a current and a noon check",
  "description": "Bowditch’s worked examples: one row per quantity, printed values as stated (decimal commas as printed, e.g. “7,1”, given here with points) and the same quantities recomputed from his inputs. Courses are compass points as printed.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "From the Surviving Record",
  "page": "https://fromthesurvivingrecord.com/shipwrecks/dead-reckoning/",
  "derived_from": [
    "Nathaniel Bowditch, The New American Practical Navigator (Newburyport, Mass., 1802), pages named in each label or row"
  ],
  "method": "Compiled by From the Surviving Record from the data listed",
  "data_credit": [
    "Nathaniel Bowditch, The New American Practical Navigator (Newburyport, 1802), retrieved 2026-11-01, public domain"
  ]
}