
TABLE. 
a Fa January. February. March. April. May. 
o” Py ee ee > ot | 
8a 3 = Mean Mean 
i 23 = ED tempe-|___— {tempe-}_— 
oe a =I rature | Rain, | rature} Rain. 
Ee A iS of the of the 
<> heed day. day. 
ft. Pas 9 =a Wir i in. a in. 
ELMIRA ciafe icles] | o = sees sees oe 0°S4 o- I‘o9g 
Landour ......| -- sien S160 B59 -\5 || 4O'7 1. we 
Paneeput. 
Rhotuck ...... 
Lahore ......--| 1180] 31 35°0 | 74 22°0 | 53°6| 2'40| -. eo. ha -- | 81°3] roo 
Jullunder ....| .. | 31 19°30175 36°45] 57°4| 3°20] 59°9] 3°42] 69°1| -- | 79°9| 0°20 
Hooshearpore ..| .. | 31 31°30|75 57°45] 51° | 6°75] 51°4| 4°75] 7o"2| .- | 81°8| -- =e 
Kangra........ -» |32 6°10) 76 19°5 | 49°3| 7°25] 57°6] 3°65] 68°7| o'g0] 781] 0°25] 82°5 
NOWINICSIE [-rec'scl| oe eras see oe ie oe oe 82°75] .- oe +. {104° 
Mean Meer ...-| .- | 31 33°10] 74 24°30] 55°8| 0°58] 59°7| 2°47] 71°4| 0°08] 83°5] -- . 
Nakoda ...... -- |32 7°0|75 30°25] 55°3| 3°28] 61° | 2°17] 71°99] 0°29] 83:4] 0°20 
Kurtapore ....| .. | 31 26°40] 75 32°30] 57°2| 2°58| 60°9| 2°40] 70°1| 0°37] 82° | oO°50 
Peshawur...... 1068 | 34 075 | 71 38° | 488] 3°24] -- i ie Salar as oe ae “a 
Kohat .......- »» 133 32°301 71 26°25] 50°5| 3°24] 58°5] 2°02] 67°3| 1°65] 77°7| 1°15] 88° | ovo) 
Rawulpindee .-| .- | 33 34°40] 73 5°20] 49°8| 3°59| 57°21] 6°08] 55°1| 2°61| 74°2| 2°50| 86°9| 2°7 
Murrie......-- ae Are occ oe Bp Z. AE bse ac ob “2 Te 
Jhelum.......+. +» |32 55°10] 73 45°25] 53°1| 3°73| 60° | 3°50] 71°8| 1°56] 85°3] 1°35] 86° . 
Wuzeerabad....| .. | 32 26°20/74 9°50] 53°8| -- | 61°9] -- | 68:5] .. | 818] .- | grtx . 
Sealkote ...... Se pictete Sele i) BAee le esc, | SO bile el OSSD rere Ae -» | 79°5 
DheraGhazeeKh.| .. weit SAD a} 56 or ae Sr or ay Sar I RCER 
DheraIsmael Kh. 58 ae : re 92° 
Ghoojarea +. yace see 50° 59° 69°5 Ghee go" 
Mooltan .....-| -- | 30 10°40] 71 33°25] 51° 58°5 9 80°38 89°4 
Shapore .....- ote aids secs | 48°5 53°5 59°5 735 73°5 
Shaikapoora....| .. eis ater 59° 66°5 ae 6° 88° 
Ghoojrat. 
Jhung. 
Leia. 
Mozuffergur. 
260 REPORT—1852. 
















On Experiments on the Laws of the Conduction of Heat. 
By J. D. Forsss, F.R.S. L. & E. 
I REGRET to state that my experiments have been altogether suspended since 
the time of my last report by a severe illness which occurred just when I was 
about to renewthem. Consequently only a trifling amount of the sum voted 
in 1851 for prosecuting the experiments has been expended; not is it my 
wish at present to have a fresh grant of money, as it is altogether uncertain 
when they may be recommenced. I have not, however, neglected to examine 
narrowly the results of the experiments already made, so far as they have 
been reduced. I am glad to say that they appear to be very consistent, and 
the experimental numbers to be worthy of preservation as valuable data in 
the science of heat. 
It is with more reserve that I communicate any conclusions affecting the 
basis of the theory of conductivity as commonly received. But having been 
in possession for more than a year of a result which seems highly probable, 
if not quite certain, I am unwilling to withhold it longer on account of an 
outstanding difficulty which I have not been able satisfactorily to remove. 
The result is this, that in the case of iron (the only one yet tried) the flux 

