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It would seem to me that by 1855, having the correct time via
accurate chronometers was not really much of an issue, if you
could afford a good one. I think that doing Lunar Distances at sea
was not that common.

They may have been done on land or in port for getting time in
isolated places, but I think the Noon Sun Sight ruled, and maybe
still does. It is the easiest to do, and requires the least
calculations.
The only draw back is the clouds and weather, and of course being
there with the sextant at LAN.

I don't think that 30 seconds difference would be that big of
a deal between the British and American Almanacs, LD's seem to
me to be very hard to do right and accurate, especially on board
a ship.

-- Gordon

PS: The British, and rightly so, complained bitterly about us
"up starts" ripping them off, with copyright violations. We copied
without regard, by reprinting tons of British
books and documents. It was kind of a sore in their side.

The British Navy, in spite of America's victories in Revolutionary War
and in the War of 1812, was still the best in the world and we knew it.




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| Gordon Talge WB6YKK         mail: gtalge AT silcon DOT com |
| (o-    Debian / GNU / Linux                                |
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|    - E Aho Laula -     (  )   Oooo. - Wider is Better -    |
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