1780. THE PACIFIC OCEAN. 401 



The following nautical observations were made 

 while we lay here : 



Harbour of Macao, - I*** T ff ™ 0" N. 



{Long. 113 47 E. 



Anchoring-place in the J Lat. 22 9 20 N. 



Typa, {Long. 113 48 34 E. 



Mean dip of the north pole £ 21 l n 



of the magnetic needle, ) 



Variation of the compass, 19 W. 



On the full and change days, it was high water in 

 the Typa at 5 h lo m , and in Macao harbour at 5 h 50 ra . 

 The greatest rise was six feet one inch. The flood 

 appeared to come from the south eastward ; but we 

 could not determine this point with certainty, on 

 account of the great number of islands which lie off 

 the mouth of the river of Canton. 



Price of Provisions at Canton, 1780. 



* A catty is 18 oz. — a pecul 100 catty. 

 VOL. VII. d r> 



