QUEEN CHARLOTTE ISLANDS. 233 B 



APPENDIX G. 



NOTES ON THE LATITUDES AND LONGITUDES 



ADOPTED IN THE 



CONSTRUCTION OF THE MAP OF THE QUEEN CHARLOTTE ISLANDS 



MESSRS. BOVEY & DAWSON. 



The latitudes of Houston-Stewart Channel and Skidegate are adopted from 

 the Admiralty maps. The latitudes of other places depend on the following 

 observations. 



In the case of observations on the sun the angle given is the greatest double 

 altitude, ie. twice the apparent altitude with the diameter of the sun. With stars the 

 angle noted is also the double altitude. The index error is in all cases allowed for. 



LATITUDES. 

 Observation Cove, Darwin Sound, June 28th, 1878. 



Sun at noon.. 121° 55' 8" 



Resulting latitude 53° 35' 10" 



Observation Point, July 3. 



(At 0-15 mile N., 15° W. of south point of Shuttle Island.) 



Sun at noon 121° 6' 30" 



Resulting latitude 52° 39' 23" 



The above values of the latitudes of Observation Cove and Observation Point 

 have been compared with each other by means of the track survey between the two 

 places. The result is that the probable true latitude of Observation Cove is found 

 to be 



52° 35' 29" 



and that the latitude of Observation Point remains uncertain, but may be taken as 

 correct within a few seconds. 

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