32 
TJLEKAIOMiSX'lilCAL SOD 
■-NJJjyO. 
of naturalists to the phenomena™!’ tL'Speratm^ofthe 
vntnl/;^ and th( ? n ? rthera coasts of Europe. The obser- 
\ at ion that the proximity of a sand-bank is indicated bv a 
n£n vTT* ° t ( ’ * em P eratllre of the sea at its surfaces 
™v°S“to?ibS,sr^ raii ?»' “ '™? 
, J uu P UI| .mn} tor the safety of navisrators Tim ,, 0 „ 
, h “ ete V “S'f ««%• M tS SJtoneSjS 'e 
ZZL ° but “Periments sufficiently pro™ that 
vamtions of_ temperature, sensible to the most imperfect 
he S ’] ndlCal: f dan " er l° n g before the vessel reaches 
the shoals. In such cases, the frieiditv of the 
hiiMeLfkTtfi 0 * t0 , llc:lv f ? t . lle load in places where he thought 
minseu m the most perfect safetv Tim i ■ , ° 
we in vl/n retl of ' H>e communication between the two worlds- 
.' e in \am 1 cried; on tlie great facilil v irilVi -ivlu'^n v ,i ’ 
any other impression wo have hitherto fell w?’ ] c 
1,10 Ejects of our dearest affiXT ^entcrin^ ? n ±? ^ 
on a new state of existence, we are’ forced to foil fowl & ° rt 
our own thoughts, and wo foci JKX & 
ness we have never known before bn,™ n’ 1 
wh'ch at tbo time of our embarking, I wrote to friendsbi 
at Ph«at.phi a ' V ° ,V emitled ^'“etnVa. N aTigation ,» pu})Iished 
