andGeography. ary 
extremity of the’Cafpidn Sea, which before that period had 
been very uncertain, and‘alfo the geographical pofition of 
the ‘cities of 'Cafbine, *Ifpahan, Bagdad, Buffora or Bufra, 
and Gella. In the year 1795 he was appointed conful at 
‘Mafeate in Arabia, by the French republic; and fet out 
from Paris on the gth of June, with fome excellent inftrn— 
ments and a chronometer by Berthoud, which he received | 
from General Calon, direStor of the geographical depdt ; 
but on account of the danger to which French veffels were 
then. expofed, in the Mediterranean, he did not arrive at 
Corfu till the 25th of June 1796; and in the end of O@ober 
reached Conftantinople. In the courfe of his voyage through 
the Grecian Archipelago, he determined the pofition of Pa- 
tras on the 22d of Auguft; of Corinth on the 26th; of Na- 
ples in Romania on the 28th; of the ifland of Specia on 
the 1ft of September; of the ifland of Andros on the_2oth; 
of the ifland of Scio on the 21ft; of Metclino on the 24th; © 
and of the Cape ofthe Janiffaries, in Natolia,’ on the 27th; 
&c. Between Corfu and Conftantinople’ alone he’ deter- 
mined the geographical pofition of twenty-fix places; and _ 
by thefe means rectified the uncertain extent from weft to 
eaft of the Lepantine gulf, By the chronometer he found the 
longitude of Patras to be 39° 41/15; and’ that of Coritith 
40’ 48! 15!’, confequently their difference of longitude 1° 7) 
At Conftantinople Citizen Aubert-Dubayet was obliged to 
negotiate a long time with the Porte before he could obtain 
permiffion for Cit. Beauchamp to explore the coafts of the 
Black Sea. For the greater fecurity, he hoped to obtain a 
Rirlan-kiche, that is, a {mall veffel belonging to the Captain 
Pacha ;, but after a great deal of trouble he could procure 
onlya firman. In the year 1780 the Turks ventured to per- 
mit the then French ambaffador, Count Choifeul-Goufer, 
‘to caufe obfervations to be made on the coafts of that fea; _ 
but Achilles Tendw*, the aftronomer fent thither for thaa 
ws purpofe, 
* Achilles Tenda was the younger brother of the unfortunate Pierre 
Marie Tendu, guillotined at Paris on the a&th of December 1793, at the 
age 
