20G 
CiUSL'S or KAIN. 
S Utti '■^® cliroiioineter, at 
the httle island of Mueara, gave Ion. 78“ 13' 51". We passed 
tL inf'”"" extremity of the Placer de San Bernardo. 
fathers* dfd^'nn! P'lky, although a sounding of twenty-five 
^thorns did not indicate the bottom ; the coolino- of the 
current. Above the archipelago of Saint Bernard and Cane 
Boqueroii,we saw in the distance the mounta S oT tS 
Ihe stormy weather, and the dilEciilty of goin " up 
Si™; ao7,V’^ d ft-SseTKok 
Shelter in tlie Eio Sinu, or rather, near the Punta del 
/apote situated on tlie eastern bank of the Ensenada de Cis- 
pata.iuto vvhich flows the river Sinu or the Zenuof the earlv 
Conquistadores. It rained witli violence, and I availe’d 
in.) sell of tli.at occasion to measure the teraiierature of the 
rain-water: it was 26-:P, wliile the thermometer ^ the air 
rP H ‘^.P^^oe where the bulb was not wet, at 24-8“. 
ciniar wheif obtained at 
thanZeaS" “ ‘fog^ea colder 
of wat’rTfaZe 
T * 1 •, “t' I.' or ly 4 , when the air was at 'in/l iRo 
1 ’ either at the 
level 01 the sea, or on table-lands from 1200 to 1500 toises hiirh there is 
e"a° rotL”- and fs“Zsfbl"’'"'l T’-' o' f-'"™ 
them no doubt tlip in I than the air. These drops bring with 
inem, no doubt, the low temperature of the liigh recions In th^ raiu 
Great cloudThearbTtl'*'*'h*^''* sitnultaiieouslv. 
thei. sSe- and ihe n!' »f the sun which strike 
produce cold' in the nir "eter m falling cause an evaporation, and 
devoted much attention during my^t"aveIs''has°Lcr'''''’'^^'^’ t 
nroblem sinne M R™. ■ 6 ““'vis, has become a more important 
Ctier” harnrm.ef h!r T E.vperimental Philosophy at 
rehitivelv to rte a^r^^ Europe ram is generally sufficienfh- cold, 
euMw drL PronTi’hU f 1 h Ptecpitation of vapour at the surface of 
of ra^n coUected at fact he traces the cause of the unequal quantity 
onlv of coS nli that one degree 
/ ^Iiipcrarure 01 lu to Id , we may cease to be surprised at th< 
