236 B GEOLOGICAL SURVEY OF CANADA. 



For time, on Alkaid : — 

 Time by watch 



9h. 







9b 



5m. 48s. " 





Latitude assumed 53° 40' 0" 



Resulting latitude : — 



First approximation 53° 3V 26" 



Second " 53° 37' 28" 



Resulting error in watch 10m. 13s. slow 



Virago Sound, near Kung Indian Village, August 19. 



Observation on Pole Star. 



Time by watch 8h. 38m. 30s. Polaris , 107° 44' 42" 



'< <' 8h. 44m. 43s. " 107° 49' 7" 



" " 8h. 47m. 50s. « 107° 51' 27" 



For time, on Arcturus : — 



Time by watch 8h. 52m. 53.5s —Star 51° 43' 17" 



" " 8h. 56m. 48s. " 50° 34' 17" 



Latitude assumed , 54° 4' 0" 



Resulting latitude : — 



First approximation 54° 2' 20" 



Second « 54° 2' 20" 



ResultiDg error of watch 15m. 40s. slow 



Maden Harbour, August 20. 



(At Observation Point.) 

 On Sun past Meridian. 



Time by watch 12h. 3m. 38.5s. 



Altitude of sun 96° 58' 47" 



Resulting true altitude at time of observation 48° 12' 47" 



Resulting true meridian altitude found by ascertaining f 



hour angle from observed time, and from the ■{ 48° 21' 7" 

 error of night previous and known rate of watch i 

 Resulting latitude 53° 56' 57'/ 



This result can only be considered correct within 1' or 2' on account of the 

 distance of the sun past the meridian, and the comparative uncertainty in the time. 



Mouth o/Jal-un River, August 23. 



On Altair near Meridian. 



Time by watch 9h. 16m. 0s. Star 88° 51' 57" 



Assuming Altair on the meridian, the resulting latitude = 54° 7' 48" 



Observation on Polaris. 



Timebywatch 8h. 31m. 52s. Polaris 108° 2' 17" 



« « 8h. 36m. 44s. « 108° 6' 7" 



