89 
louse: two medals, one in bronze, and one silver, forwarded 
by the Viscount de Mae Carthy, M.R.I.A., &e, 
3. The seal of William, Lord Bishop of Limerick, Ard- 
fert, and Aghadoe, 1849, presented by the Lord Bishop of 
Derry. 
Monpay, May 22np, 1854. 
LIEUT.-COL. LARCOM, F.R.S., Vicz-Presipenr, 
. in the Chair. 
Tue Secretary read the following paper, by Mr. J. Beete 
Jukes, on the barometrical measurement of the Peak of Tene- 
riffe. 
“‘On the Ist of May, 1842, 1 ascended the Peak of Tene- 
riffe, in company with the late Captain F. P. Blackwood, 
R.N., then commanding H.M.’s surveying Ship, Fly, and 
(Lieutenant, now) Capt. C. F. A. Shadwell, C. B. We carried 
with us a Newman’s mountain barometer, the neutral point 
of which was stated at 29-742, attached thermometer 60°, its 
1 
52? 
capillary attraction at 041. We also took a Mason’s hygro- 
meter and a Wollaston’s barometric thermometer, on which, 
relative capacity of tube and cistern = =, and the correction for 
however, only one observation was made before it was broken. 
‘* We started at seven in the morning, from the Posada in 
Oratava, halted at mid-day, ata spot called by the guide ‘the 
Cariada,’ slept at the place called the ‘ Estancia de los Ingleses,’ 
on the flank of the cone, reached the summit by sunrise, and 
. returned to Oratava at two in the afternoon of the next day. 
‘«< The following were the observations made :— 
(1) May 1, inn at Oratava, at seven a. m.—Barometer, 
30-250; attached thermometer, 70°; detached thermometer, 
VOL. Vi. H 
