# Leibniz Legible — https://leibnizlegible.com
# Piece: https://leibnizlegible.com/api/records/59474/text
# Catalogue record: 59474 — Comme les pilotes prennent les hauteurs sur mer
# Incipit: Primum male sumunt lineam horizontalem, aquam aspiciunt à fleur d'eau,
# Date: 1673
# Akademie-Ausgabe: AA VIII,1 N. 011
# Other printings: E: Gerland, Nachgelassene Schriften, 1906, S.208.
# Record in the Leibniz-Katalog: https://leibniz-katalog.bbaw.de/de/extended-search?id=59474&katnr=Cc2+1557
# AA VIII,1: its series at Leibniz-Edition Potsdam II (CC BY-NC 4.0): https://leibnizp2.bbaw.de/de/leibniz-online
# In the Akademie-Ausgabe: AA VIII,1, p. 147 (PDF, Leibniz-Edition Potsdam II, CC BY-NC 4.0): https://leibniz-berlin.bbaw.de/fileadmin/Webdateien/dateien/LSB_VIII_1.pdf#page=147
# Work: https://leibnizlegible.com/work/00068537
# Title: Leibniz-Handschriften zur Technica LH 38
# Folios: Bl. 22 (from the shelfmark LH 38 Bl. 22): 2 pages, canvases 43–44, page ids 00068537:0043 to 00068537:0044
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=00068537&page=43
# Lines: 41 recognised on 2 of 2 pages, mean confidence 0.92
# Catalogue: Leibniz-Katalog / Arbeitskatalog der Leibniz-Edition (https://leibniz-katalog.bbaw.de/), ed. Arbeitsstelle Potsdam I der Berlin-Brandenburgischen Akademie der Wissenschaften, CC BY 4.0.
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line, page by page: a "## Folio <label> — <page id>" line ("## Canvas <n>" where no folio label is recorded), "# " lines naming its source image and model, then its recognised lines in reading order, one per line.

## Folio 22r — 00068537:0043
# Source image: https://digitale-sammlungen.gwlb.de/content/00068537/jpgs/default/00000043.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 38 lines, status machine
cmme les pilotes prennent les hauteurs
sur mer.
primum male simunt
lineam horizontalem
aquam aspiliunt a fleu
d’eau sed ipsa primum altitudo
navis errorem facit. Deinde quod longe
importantius, usue onstrumenti
90
quod vocant l’arcbaleste, est complissimus
veberent in spicere ex centro a. cum per extremamspicient
at illi inspiciant bE. separatum ob. ec separatimi.
at ipsi centrum ponunt in media auus rectae ed.
p2ad tam
Methodum habeo
perfecte observandi in navi
quantum ab homine possibile
est. Ope Instrumenti hevenotiam
haberi pt linea horizontalis,
inde forma quadam Camerae obsimae
portalisis adhibita, chartaque)
inolita cousue mutetur sau
dumstelai certo apparea
quaesita in certo appareat puncto
chartae, ulbi ibi apparid tacto
quodam Elaterio machinae partibus
stabilis quidam situs detur
quo facto habebitur angulus
quaesitus.  Hoc modo non
opus est quaer inspicere per
dioptram, quo casu quaerere
difficile. At ipsam digptia,
dirigere in stellam, non
inspiciendo perdioptram
videtur adhm difficilius sed
hoc invento emendatur
12+5(d 3t 77) edt ac tun 
t

## Folio 22v — 00068537:0044
# Source image: https://digitale-sammlungen.gwlb.de/content/00068537/jpgs/default/00000044.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 3 lines, status machine
H 38
eoncuoocur cannespori
LH.