226 
VOYAGE FOR THE DISCOVERY 
1820. 
July. 
at the points which form the entrance of the harbour. This sudden and 
unexpected change rendering it probable that we should at length be re- 
leased, I sent to Captain Sabine, who had been desirous of continuing his 
observations on the pendulum to the last moment, to request he would 
have the clocks ready for embarkation at an early hour in the morning. 
I furnished Lieutenant Liddon with instructions for his future guidance during 
the ensuing season of operations, appointing also certain places of rendez- 
vous, to facilitate our meeting, in case of unavoidable separation during that 
period. I sent also on board the Griper, in compliance with my Instructions 
on that head, a chart of our late discoveries, together with a duplicate copy 
of every document of interest relating to the Expedition. 
The latitude of the anchorage in Winter Harbour, by the mean of 
thirty-nine meridian altitudes, is 74° 47' 19".36 N. 
The longitude, by the mean of six hundred and 
ninety-two sets of observations, consisting of six thou- 
sand eight hundred and sixty-two lunar distances - 110° 43' 29".2 W. 
The dip of the magnetic needle 88° 43' N. 
The variation 127° 47' 50" E. 
The mean time of high water, on the full and change days of the 
moon, 1 hour 29 minutes. 
' May - - - 2 feet 6| inches. 
The mean rise of the tides - - - June - - - 2 „ 7 
. July - - - 2 „ 8£. 
