92 
By the simultaneous observations on different instruments, 
and by different observers, on May 2:— 
J. (11880+50) . . . =11930 feet. (©) 
HGI826 3.50) acy ae L876 u oe 
By calculating from the two observations on same day taken 
at summit and Oratava— 
J. (11930+45) . . . =11975 feet. D 
H.(11877445) . . . =11922 ,, ) 
«‘ The mean of these values A, B, C, D, 
= 12008 feet, by my calculations. 
= 11940 feet, by Professor Haughton’s calculations. 
‘«‘T may add, that the weather was fine and settled, with a 
stratum of clouds at about the height of 5000 to 6000 feet, 
above which the atmosphere was perfectly clear. The wind 
on the summit, at 6 a.m. on the morning of the 2nd, was very 
light from N. by E., while, at Santa Cruz, at the same time, 
it was blowing rather freshly from the N. KE. 
“‘ On the 28th, as we approached the island, with fine clear 
weather and a light breeze, Mr. Evans, Master of H.M.S. 
Fly, took trigonometrical observations on the Peak witha sex- 
tant, measuring a base with the patent log. The results of 
these observations gave a height of 12,105 feet for the height 
of the Peak. . 
‘«« The heights assigned by Humboldt, who did not himself 
make any observations, are for the 
Torsis. Feet. 
Estancia de los Ingleses, 1552= 9921 
The summit of the Peak, 1909 = 12204 
‘“‘ The two values deducible from our preceding observa- 
tions, for the height of the Estancia, are 9886 and 9851, the 
mean of which = 9868, which only differs by 53 feet from that 
