128 BULLETIN OF THE 



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of Prof. Hall's station. Here we erected a pile of boulders as a 

 beacon, and by means of the telemeter staff, and a small triangu- 

 lation connected with our azimuth line, we found fhis beacon to 

 bear N. 1° 42' 26" E. from our astronomical station, and 462.9 

 metres distant, or in round numbers 460 metres N. 1° 42' E. of ours ; 

 in arc this is 1" E. and 15" N. of ours. Applying these reductions 

 to the position already adopted, we have as the position of our 

 station, according to Prof. Hall 



Latitude, 64 22 / 10" N. 



Longitude, 173 21 32 ± 6 // W. Gr. 



In 1876 the bay was visited by Lieut. M. L. Onatsevich, of the 

 Russian Navy in the " Vsadnik," and a rough survey made of the 

 bay with a somewhat detailed survey of the anchorages. At the 

 same time astronomical and magnetic observations were made. 



In 1877, the Russian Hydrographic Office published several 

 charts embodying the results of Onatsevich's observations, and 

 among them, a chart of Port Providence, or "Plover Bay," as it is 

 usually called by the whalemen. On this chart it is stated that the 

 astronomical station of Lieut. Onatsevich is, according to his ob- 

 servations in 



Latitude, 64 21 ' 37" N. 

 Longitude, 173 18 30 W. Gr. 



In the following year, however, 1878, Lieut. Onatsevich's report 

 was published, and in this report the position of the astronomical 

 station is stated to be 



Latitude, 64 21' 55" N. 

 Longitude, 173 23 54 W. Gr. 



the longitude depending upon that of Petropavlovsk, which latter 

 is taken as lOh. 34m. 37s. or 158° 39' 15" E. from Greenwich. 

 This last result appears to be the finally corrected one, and is 

 adopted as Onatsevich's determination. 



The station occupied by Lieut. Onatsevich is clearly marked upon 

 his chart, and as we had this chart with us the place was quite 

 closely identified, probably within a few feet. The attempt was 

 made to have our station identical with his, and consequently no 

 reduction is necessary. 





