8 HEAT. 



Table (con tinned.) 



Annealed steel Muschenbroek 1.00122003 



Tempered steel Do 00137000 



Iron Borda 00115600 



Do Smeaton 00125800 



Soft-forged iron Lavoisier and Laplace 00122045 



Round iron, wire-drawn Do. do. 90123504 



Iron wire Troughton 00144010 



Iron Dulong and Petit 00 1 1 8203 



Bismuth Smeaton 00139200 



Annealed gold Muschenbroek 00146000 



Gold Ellicot, by comparison 00150000 



Do. procured by parting Lavoisier and Laplace 00146606 



Do. Paris standard unannealed Do. do. 00155155 



Do. do. annealed Do. do. 00151361 



Copper Muschenbroek 0019100 



Do Lavoisier and Laplace 00 1 72244 



Do Do. do. 00171222 



Do Troughton 00191880 



Do Dulong and Petit 00171821 



Brass Borda 00178300 



Do Lavoisier and Laplace 00186671 



Do Do. do. 00188971 



Brass scale, supposed from Hamburgh . Roy 00 1 85540 



Cast brass Smeaton 00187500 



English plate brass, in rod Roy 00 189280 



Do. do. in a trough form. . Do 00189J90 



Brass Troughton 00191880 



Brass wire Smeaton 00 1 93000 



Brass _. .. Muschenbroek 00216000 



Copper 8, tin 1 Smeaton 00181700 



Silver Herbert 00189000 



Do Ellicot, by comparison 002 1 000 



Do Muschenbroek 00212000 



Do. of cupel Lavoisier and Laplace 00190974 



Do. Paris standard Do. do. 00190868 



Silver Troughton 0020826 



Brass 16, tin 1 Smeaton 00190800 



Speculum metal Do 00193300 



Spelter solder ; brass 2, zinc 1 Do 00205800 



Molacca tin Lavoisier and Laplace 00193765 



Tin from Falmouth Do. do. 00217298 



Fine pewter Smeaton 00228300 



Grain tin Do 00248300 



Tin Muschenbroek 00281000 



Soft solder ; lead 2, tin 1 Smeaton 00250800 



Zinc 8, tin 1, a little hammered Do 00269200 



Lead Lavoisier and Laplace 00284836 



Do Smeaton 00286700 



Zinc Do 00294200 



Zinc, hammered out half inch per foot Do 00301100 



Glass from 32 to 212 Dulong and Petit 00086130 



Do. from 212 to 392 Do. do 00091827 TOSS 



Do. from 392 to 572 Do.- do 0001011 14 SST 



Note. " The last two measurements by an air thermometer." 



" To obtain the expansion in volume, multiply the above decimal quantities by 3, or 

 divide the denominators of the vulgar fractions by 3 ; the quotient in either case is the 

 dilatation sought." 



" We see that a condensed metal, the particles of which have been forcibly approxi- 

 mated by the wire-drawing process, expands more, as might be expected, than metals in 

 a looser state of aggregation." 



Tl'cT 



It would appear from the foregoing 

 table, that in many instances there is a 

 relation between the expansion or en- 

 largement of metals and their fusibility, 

 er disposition to melt, as, in general, 



those which are most fusible are also 

 the most expansible. 



Advantage is taken by some artizans 

 of the expansion of solid bodies by heat. 

 The parts of large vessels for holding 



