Tabelle aus Logbuch Seite 110 vom 16. März 1788

(110

Lunar Observations since the 12th. March to the 16th opposite reduced to 5h:33′ by applying the difference of Longitude by the Time Keeper.

Time
 When
  1788
Longitude
  by
Time Keeper
Longitude
  by
Observation
Correction to be
appld to reduce them to
5h..33′ of the
16th opposite
True Longitude
by Observn at 5h:33
of the 16th
Longitude
turned into
Time
T Keeper fast
for Mean Time
at Greenwich
March 13th57°..33′..09″ 57°..24′..15″W 1..11..36 58°..35′..51″W
57..22..31 58..34..06
57..35..15 58..46..51
57..48..45 57..48..15 0..56..00 58..44..15
57..51..00 58..47..38
58..00..45 58..56..45
15th58..04..07 57..52..45 0..40..38 58..33..23
58..09..30 58..50..08
58..16..11 58..53..38
16th58..44..45 58..23..30 58..23..38
58..14..30 58..41..30
58..10..15 58..10..15
58..11..45 58..11..45
58..16..45 58..10..45
Mean Longd. at 5h..33′ of the 16th of March 58..34..14 = 3:54:16:56 } 0′14″:4″′
 Longd. by Time Keeper at the same time 58..44..15 = 3:54:59:
.. ..42..4   
 Longd. by Observation—..10..31 Et of Time Keeper
 Longd by Observation on the 17th Feby less than Time Keeper—..16..25 Et
— .. 5..54 in Longd. Et

which the Time Keeper has lost in 28 days and its Rate by this is loosing on Mean Time pr 24 hours .5″,57 equal to one tenth of a second nearly, and I now consider it fast for mean time at Greenwich the 15th Noon 0′..42″..4″′.