CAPTAIN SIR E. BELCHER ON THE TIDE OBSERVATIONS AT OTAHEITE. 57 
high water during each twenty-four hours, and that their range was from 10 a.m. 
to 2 h 2 7 m p.m., or nearly 4 h 27 m by day, and 3 h 20 m by night. The influences of the 
sea or land breezes are not apparent. Indeed, if any such influence be admitted, it 
is decidedly at variance with the anticipated effect, as the night tides are higher with 
the land wind off shore. 
With a strong land wind the height generally indicated the same as in calm. But 
the mean tide-levels before alluded to, distinctly indicate an equable rise and fall. 
The night tides observed at Point Venus do not so exactly accord with those ob- 
served at Motouta. 
I much regret that we had not an opportunity of observing the whole lunation ; 
but I trust that sufficient has been advanced to satisfy you that no exertion was 
wanting in carrying through these intricate labours, and that even in their present 
form they may prove not altogether without interest. 
I am Sir, 
Your most obedient Servant, 
Captain F. Beaufort, R.N., 
Hydrographer. 
Edward Belcher, Captain. 
MDCCCXLIII. 
I 
