XXXV111 
REPORT- 1854. 
Correspondence. 
(Copy.) 
. “ Office of Committee of Privy Council for Trade, 
Marine Department, 2/th March 1854. 
“ Sir,—I am directed by the Lords of the Committee of I’rivy Council 
for Trade, to address you as the Chairman of the Committee nominated by 
the British Association for the Advancement of Science to superintend the 
Kew Observatory ; and to state that for the purpose of aiding in carrying 
into effect the proposed plan of making an extensive record of meteorological 
observations. My Lords contemplate that they shall have occasion to provide 
fifty barometers and three hundred and eighty thermometers, with both 
Fahrenheit and Centigrade Scales, and also one hundred and twenty wet 
bulb thermometers similarly graduated. 
“ It is of the highest importance that the instruments to ho provided should 
be correct, and should bear upon them u stamp indicating that they have 
undergone an inspection and have been compared with an approved standard. 
My Lords would therefore be greatly obliged if the Committee of the 
British Association could uid them with their valuable assistance in accom¬ 
plishing the purpose they have in view, and they would also bo glad to be 
informed whether hydrometers with the graduated scale, and other instru- 
lh ® r* port of the conference held at Brussels last year, 
could be tested at the Observatory. 
considtr‘ 1[ Ie3 ‘? me . toe *P re “ 'heir hope that the Committee will 
ct 11 suffloiont for * hc sicp the >' 
“I have the honour to be, Sir, 
“j p'r a ..i A t v „ “ Your obedient Servant, 
J* P. Gassiot, Es q . (Signed) “ T. H. Farhbh." 
(Copy.) 
“ Sm t.. .. , , “ Clapham Common, 3rd April 1854, 
inform you thatfor ettCI ^J arcb I have been directed to 
prove of so much ini nortat!nJ?°tA ft)nv . ai .’ din £ a matter which is likely to 
Kew Committee of the British Al«nIv»? ar,,,niC ir ! tcrests o1 ' 'his country, the 
execution of any contracts wwiS**? 110 !! rirt ’ 'l u,te wady to superintend the 
-Wr or nf Trad " -y “to f- 
nsed for examining Jhu°temperature * orm of thermometers should be 
The Committee hfvi prJSJE TZZ- the T’ tl,e «•«! aqueous vapour, 
them for the purpose oAakine obsi'r” ?- ° f t,le thermometer approved by 
divided in Fahrenheit dLZ? LjT *«; this thermometer is 
great inconvenience, and a cousidornHT arc of opinion that very 
ro... any attempt to tombl* Utt would result 
wn AT ,Ufl f ru «ent. They are also n/ l - nhcit a,,(1 Centigrade scales on 
«A barometer ^ T* a corab »'a‘mn. 1)10,0,1 ^ n ° advanta S e whatever 
t'up to Leith and back toVondon^ a “ d ' tR UctioiJ tested by Mr Welsh in a 
ZTT'7 T, slighfalteratiotirli^ 
Chtnll^o ;fs aUy . t0 ,iave 
niencB of h S<>a > ,n order tlmt its ; ,n a “hort cruise m the 
II,M. Naw ev‘ ng - ' nay ,>e Judged of. and {‘T* P mn P in g, and conve- 
Savy experienced in LJ oC„alh m ? P there ™ % officers la 
