SCIENTIFIC OBSERVATIONS. 217 
feet; according to the barometrical measure- 
ment of Mr. Long, only eight thousand feet 
above the level of the sea. 
Our first observation by chronometers, on 
our arrival at Matarai, gave the longitude of 
Venus Point as 149° 20' 30”; the true one, as 
given by Admiral Krusenstern on his map, is 
149° 27 20”; consequently, the error of our 
chronometers was 6 50’. This correction has 
been made in all the longitudes taken by us in 
the dangerous Archipelago. From our obser- 
vatory on Venus Point, we found its latitude 
17° 29' 17”, and its longitude 149° 29’. 
The variation of the needle was 6° 50’ east, 
and its inclination 29° 30’. 
The barometer ranged from 29! 80’ to 29’ 70’ ; 
Reaumur’s thermometer. from twenty-three and 
a half to twenty-four and a half. 
The islands which I discovered on my former 
voyage in the ship Rurik,—the Romanzow, 
Spiridow, Dean’s Islands, the Rurik’s Chain, &c. 
whose longitude I had not then an opportunity 
to rectify upon Venus Point, lie 5’ 36” more to 
the west than I at first supposed. 
VOL. I. L 
