PROCEEDINGS OF THE POLYTECHNIC ASSOCIATION. 



559 



Centig. Reainur 



105 

 100 

 95 



75 

 70 

 65 



60 

 55 



60 



45 



40 



35 



30 



25 



20 



15 



10 

 5 

 4-3 4-5 





 —5 

 -10 

 -15 

 -17 7-9 



56 

 52 



48 

 44 



40 

 36 

 32 

 28 

 24 

 20 

 16 

 12 

 8 

 4 

 +3 

 

 —4 



Fahren. 

 221 

 212H 



203 

 194 

 185 

 176 

 167 

 158^ 



Particulars concerning each Temperature. 



Melting point of iodine, 

 do 

 do 



—25 

 —30 

 —35 

 —40 

 —45 

 —50 

 —55 

 —60 

 —65 

 —70 

 —75 

 —80 

 —85 

 —90 

 —95 

 -100 

 -110 

 -120 

 -130 

 -140 

 -160 



-180 

 -200 

 -225 

 -250 

 -275 



-12 



-14 



—16 



—20 

 —24 

 —28 

 —32 

 —36 

 —40 

 —44 

 —48 

 —52 

 —56 

 —60 

 —64 

 —68 

 —72 

 —76 



-104 

 -112 

 -128 



—144 

 —160 

 —180 

 — 2U0 

 —220 



149 



140 

 131 



122. 



113*" 



104 



95 



50 

 41 

 -38' 

 -32 

 -23 

 -14 

 +5 

 

 —4 



Boiling point of naphtha, 

 inuline. Boiling p. of water and chlor. amyle. 

 alloy of 4 parts bismuth, 1 tin and 1 lead, 

 do sodium, elaidiue. 



do 4 parts of bismuth, 1 tin, 1 lead and j mercury, 



do naphthaline. Boiling point of benzine, alcohol, 



do 5 parts bismuth, 2 tin, 3 lead and 1 mercury, 



do stearic acid, white wax. 



do 2 parts cadmium, 2 tin, 4 lead and 8 bismuth, 



do common wax. Boiling point of bromine and 



chloroform, 

 do camphoric ac. Boiling^oint of chlor. of silicon, 



do potassium, spermaceti. Boiling point of ace- 



tone, comm. amm. 

 Greatest heat of the atmosphere observed at the equator. 

 Melting point of phosphorus. Boiling point of sulphide of carbon. 

 Temperature of the blood of mammifers and birds. 

 Melting point of lard. Boiling point of ether. 

 Melting point of butter. Acetous fermentation. 

 Temperature of the blood of large fishes, as sharks, &c. 

 Phosphorus ignites; aldehyde boils. Vinous fermentation. 

 Melting point of compound of 1 part sulphur and 4 phosphorus. 

 Freezing point of anise oil. Boiling point of chloride of ethylc. 

 Melting point of triyl (Faraday's biearburet of hydrogen.) 

 5 Greatest density of water. 

 Melting point of ice. 

 Freezing point of seawater, wine. 



do turpentine. Boiling point of sulphurous acid, 



do hydrocyanic acid. [and 1 snow, 



do pure sulphuric acid. Mixture of 1 part salt 



do linseed oil; brandy; bromine; solution of 



common salt. 

 do castor oil. Boiling point of cyanogen, 



do common sulphuric acid. 



do common nitric acid, cyanogen. Boiling point 



do mercury. [of fluid amm. gas. 



do liquid ammonia. 



do St. ong nitric acid. Boiling point of arsenide 



do solution of tartrate <f soda. [of hydrogen. 



Greatest cold of the atmosphere observed near the poles. 

 Temperature of the planetary space, after Fourier. 

 Boiling point of sulphid'3 of hydrogen. 

 Temperature of sulphurous acid. 

 Boiling point of carbonic acid, hydrochloric acid. 

 Freezing point of carbonic acid. 

 Boiling point of protoxide of nitrogen. 

 Mixture of solid carbonic acid and ether. 

 Freezing point of protoxide of nitrogen. 

 Mixture in vacuo of solid carbonic acid and ether. 

 Mixture of solid protoxide of nitrogen, solid carbonic acid and 

 ether; alcohol exposed to this cold becomes thick as castor oil. 

 The former mixed in vacuo with sulphide of carbon. 

 Temperature of the planetary space, after Ponillet. 

 f Temperature at which the volume of gases would be condensed 

 to nothing, if they followed the same law for all lower tem- 

 peratures, namely contracting for every degree Cent, one 

 273d part of their volume at O^. 

 < [This temperature was therefore .adopted by Clement and Des- 

 ormes as the point of absolute cold; however gases liquefy 

 and solidify before reaching this point, and the day may be 

 near that even hydrogen will bo condensed to a metallio 

 state, which is evidently its nature.] 

 The temperatures above A are probably impossible; those from A to B and from to P are 

 hypothetical temperatures; from B to C and N to are artificial temperatures, produced 

 only in the chemists laboratory; from C to D is the most powerful blast-furnace temperature; 

 and from D to E the heat of a common blast-furnace, or of one with a good draft; from this 

 point to F is the heat of most common flames without draft or blowing; however to produce 

 this temperature on a large scale, a draft is necessary to supply the required amount of air; 

 also for the next range from F to G, representing high pressure, and to II, low pressure steam. 

 From H to K is the chemist's water-bath, and finally from K to N the range of atmospherical 

 temperature on our planet. 



—13 

 —22 

 —31 



—40 



—49 



—58 



—67 



— 76N 



—85 



—94 



—103 



—112 



—121 



—130 



—139 



—148 



—166 



—184) 



—202^ 



— 220O 



—256 



—292 

 —328 

 —373 

 —418 

 — 463P 



