longitude o f Kamtchatka, as laid down by the Ruffians--
To this purpofe he has given to the public,
1. Memoires et obfervations géographiques et Critiques
fur la fituation des Pays Septentrionaux de l’Afie-
et de l’Amérique. A JLaufanne, 176 5.
2. Geographifche und Critifche Nachricht ueber die
Lage der noerdliehen Gegenden von Alien und America.
Mittau, 1772.
It appears, to Monûeur de Vaugondy, that there are
not fufficient grounds for fo extraordinary a diminution e
accordingly he Ihortens the continent of Afia only
eleven degrees of longitude 5 and upon this fubj eel he
has given the two following treatifes r
j . Lettre au fujet d’une carte fyftematique des Pays.
Septentrionaux de 1’Afie et de l’Amérique- Paris, 1768-
2. Nouveau fyfteme géographique, par lequel on
concilie les anciennes connoiffances fur les Pays au
Nord Oueft de l’Amerique- Paris,, 1774-
Monf. Buache In oppofition to thefe authors, Monfieur Buache bas.
sÿftem'ofhthe publiffied an excellent treatife, entitled Memoires fur
SavLiôfdy.lès Pays de l’Afie et de l’Amérique- Paris, 1775-
IB
j 1
In this memoir he diflènts from the opinions of
Meffrs Engel and Vaugondy ; and defends the fyftem
of the Ruffian geographers in the following manner.
Monfieur Maraldi, after comparing the obfervations
of the fatellites of Jupiter, taken at Kamtchatk,a by
Kraffilnikoff, with the tables, has determined the longitude
of Ochotlk, Bolcheresk, and the port of St. Peter
and Paul from the firft meridian o f Paris as follows r
h t ;
* Longitude of Ochotlk 9 23 30
of Bolcherelk to 17 17
of the Port 10 25 5
Latitude of Ochotlk 59° 22', of Bolcherelk 5 2° 5 5', o f
the Port 5 30 1'.
The
* Kraffilnikoff compared his obfervations with correfponding ones
taken at Peterfburg, which gave refults as follow 2
From comparing an obfervation o f an eclipfe of the firfl fatellite,
taken at Ochotlk the 17th o f January, 1743, with an obfervatibn o f an
eclipfe o f the fame fatellite taken at Peterfburg on the 15th of January
in the fame year, the difference o f longitude between Peterfburg and
Ochotlk appeared to be 7h. 3 1 '2 9 " ; from a comparifon o f two other
fimilar obfervations the difference of longitude was. 7h, 31' 3 ', a mean
o f which is 7h. 31' 34", being the true difference between the meridians
o f Peterfburg and Ochötfk according to thefe obfervations. By adding,
the difference o f the longitude between Peterfburg and Paris,, which is
p>. 52' 25",. we have the longitude of Ochotlk from Paris 9h. 23' 5g",.
which differs 29'' only from the refult o f Monf. Maraldi. Nov. Comm—
Pet. III. p. 470.
it