and the lowest thermometrical readings each month. 
AT NIGHT, FROM THE EARTH, ETC 
213 
The lowest reading in each month of the self-registering 
thermometer placed 
c a 
0+3 
o 
210 
15-5 
On 
lead. 
15-6 
25-5 
On 
flax. 
oi 04 co p © p p <>* WX 91 P 99 
o ^^©©©©CCOI^OOJCOCChJ* 
•— I H CO CO ©4 «— 
On 
white 
raw 
wool. 
UOUOX) . X cuo o .go 
o cb ch :^©cb© -cb : : : : : 
«— • hi 04 HIM CO 
On 
short 
grass. 
9 X 99999 CI . K 9 X X ip 9 X 9 Cl CO 
04 CO CO CO Ol hhN ^ <04 04COCOC00404 04«— 
On 
long 
jgrass. 
. . . . GO ip p Op .XCI 7999 X 9999 
^ h« f- (M ^h^hO4O4C0C0C0O4O4h- 
In focus of 
metallic 
parabolic 
reflector. 
OCp^^OOOOOCpipip^^i0^p^^iO^^^CpO^GCO^(NCO?pip04GpcOipp^p04CpCOOl»OOl»7% 
hhO4O4C0C0C0C0C0O4hHi— <04O4O4C0C0C0"^<C0* , hO4O4'-h hm(MCOCOWC1phm^ h ^ ©i NCO CO CQ Cl (M 
In air 
at 4 feet 
high. 
(Cp^ppCppp^ppppp^ppP'7<'*t<p»P'7'<X'X>CC9<'7< 
CO©i^i^©4*ib©0404^CO©C5C»©^»H*^'^CC^©^©©i>*i«64^4^©<»»^^&©^WM^»>+04'^<©*>»>^ 
o^04CO'^^'^''tfCOC0040404040404CO''1<^}<HfH*OicOC0 04 04 04 04CO^<^'-tfC0040404r-<04 04COCO'<*~t<-fCCC00404 
The greatest excess, in each month, of the mi- 
nimum reading of a self- registering thermometer, 
placed in air 4 feet above the ground and pro- 
tected from radiation, above the minimum read- 
ing of a similar thermometer fully exposed to the 
sky, placed 
S-S 
On 
lead. 
si 
Cp^(^500H-C5»£iO©Opa5«pCp'^'^ 
On 
white 
raw 
wool. 
9 ^ 0 9 9 Tf x 9 9 9 . . . . 
On | 
short, 
grass. 
' 04p^p^COp^ppCO' , ^p04pGC'7'*7<X>p*> 
On 
long 
grass 
In focus of 
metallic 
parabolic 
reflector. 
OO^COiOO^asp^OiO^OCOO^CpiOO^COOO^C^^t^^^OiOOCpCOpp^OlCpCpHH^'^OCSiO^^^O^ 
Mean yearly 
excess of the 
reading of 
thermometer 
in air, above 
that in 
reflector. 
Mean state of the 
sky with respect 
to the quantity of 
cloud during the 
night, 10 being 
quite cloudy, and 
0 being quite 
clear. 
ONfOC5«5X9 999999999 9 9 l op9'^wp9X999H'r}i9P99pp9 9^9999999 
Excess of the mean 
reading of the mini- 
mum thermometer 
in air at 4 feet high, 
above that of a 
similar thermo- 
meter placed in the 
focus of a reflector. 
N«ox»f5oc5©i«ooocp997-P'HX'Hf©9X9M999»-iX999999999X9p9'i'px(MN 
Mean reading 
of all the mi- 
nimum read- 
ings, in the 
month, of the 
thermometer 
in air. 
©t^©^04uocoo4©©^pppp©04^cococop04^pp^pppp:pp^:opcp*>qp^rp:pcp04pp'^ 
«•— co <© cb cb ■— ^Hc©xibci 6 c 3 No(NWcbac 5 C 56 iOHN 6 ^C 50 ic:ci(hx 6 'i''-in'HTji 6 'i' 66 c©w'. 5 
CO COCO^^iO^iOTTCOCO'NCOCOCO^^i^^^COCO^COCOCOTjiHjiHtiOuOiO^CO^COCOCO^^iOiQiQuO^COCO 
Mean tem- 
perature of the 
month by a 
thermometer 
in air at 4 feet 
high, pro- 
tected from 
radiation. 
cooiox^xioHixK99X99999'^^ , i , xp9p9H9c©9H9px9'H9 9N9T)'99 9 9pp 
CO^^^^O^OO^O<!^O^^CO^O^^^^^C5Cb^^^^O(flCiCOcbcbC5»O^H-i(f4 ( X)^-<>.4>»6i'^CO 
CO H?i^io^iOCOiO'n < ' , ^'^'CO-rf^' T t^OCOCDCDLQ^'^t , '^COCO' , ^' , ^»O^OCDCDiOHr'^Ht'COCO'^»O^O i OCOuOYr:^'3 , CO 
Month. 
February 
Marcli 
April 
May 
June 
July 
August 
September 
October 
November 
December 
January 
February 
March 
April 
May 
June 
J uly 
August 
September 
October 
November 
December 
January 
February 
March 
April 
Mav 
June 
July 
August 
September 
October 
November 
December 
January 
February 
March 
April 
May 
June 
July 
August 
September 
October 
November 
December 
Year. 
1841. 
1842. 
1843. 
1844. 
