5S> cook's SECOND VOYAGE JAN. 



immerged in the sea 100 fathoms below its surface, 

 where it remained twenty minutes. When it came 

 up, the mercury stood at 32, which is the freezing 

 point. Some little time after, being exposed to the 

 surface of the sea, it rose to 33-%, and in the open air 

 to 36. The calm continued till five o'clock in the 

 evening;, when it was succeeded by a light breeze 

 from the south and S. E. with which we stood to the 

 N. E. with all our sails set. 



Though the weather continued fair, the sky, as 

 usual, was clouded. However, at nine o'clock the 

 next morning, it was clear, and we were enabled 

 to observe several distances between the sun and 

 moon. The mean result of which gave 39 30' 30" 

 east longitude. Mr. Kendal's watch, at the same 

 time, gave 38 27' 45", which is 1 2' 45" west of 

 the observations ; whereas, on the 3d instant, it was 

 half a degree east of them. 

 In the evening I found the variation, by 1 



the mean of Azimuths taken with > 28 14' 



Gregory's compass, to be J 



By the mean of six Azimuths by one 1 no &* ~ 



of Dr. Knights j 



And by another of Dr. Knight's 28 34 



Our latitude at this time was 63 57', longitude 

 39 38" east. 



The succeeding morning, the 15th, being then in 

 latitude 63 33' south, the longitude was observed by 

 the following persons, viz. 

 Myself, being the mean of six distances 7 ^ . , ^ ;/ y 



of the sun and moon ) 



Mr. Wales, ditto - - - 

 Ditto, ditto - 



Lieutenant Clerke, ditto .-. 



Mr. Gilbert, ditto - - 

 Mr. Smith, ditto - 



Mean - - - - 



Mr. Kendal's watch made 



