CONTENTS. vii 
1 . Abstract of the foregoing Table . . - Page 716 
8. Remarks upon the Aurora Borealis . . • • • 'i'22 
9. Specific Gravity of the Surface of the Sea . . • . 727 
10. Temperature of the Sea at various Depths . . . . 731 
11. Dip and Intensity of Magnetic Force .... 733 
12. Variation of the Compass . . . ■ . . 735 
ERRATA TO PART II. 
Page line 
402, 28, for where, read when. 
408, 9, for is, read are. 
410, 4th line from bottom, for in the harbour, read off the town. 
566, 5, for set forth, read said. 
655, 16, for With wind, read With a fair wind- 
673, 6, for Villenchinsky, read Villeuchinsky. 
