39'2 



CATAtOGUE. — HEAT, EXPANSION. 



Water. The degrees of Fahrenheit's thermometer, reckoning either way from 39", being called /, the eitpansion of 

 water is nearly expressed by .000 0025!/"' — .000 000 00435/', or* more shortly, 22/' (l — .OO'if], in ten 

 millionths; and the diminution of the specific gravity by .000 002!$/"' — .000 ooo 004? s/'. 



10^ 

 so 



Specific gravity. Diminution of sp. gr. 



Observed. Obsen'cd. Calculated. 



As 69°. Dalton corrected. 



.99980 Gilpin, 20 



34 



39 



44 



48 



49 



54' 



59 



04 



69 



74 



77 

 79 



(82) 

 90 

 100 

 102 

 122 



142 

 162 

 J67 

 182 

 202 

 213 



1794. 

 • 99988 -G. 



•99994 G. 

 1.00000 G. 

 .99994 G. 

 .99982 G. 

 .99978 G. 

 .99951 G. 

 •99914 G. 

 .99867 G. 

 .99812 G. 

 .99749 G. 



.99680 G. 



.99612 Kirvran. 



.99511 G. 1790. 



.99313 G. 



,99246 K. 



.98757 K. 



.98199 K. 

 .97583 K. 



.96900 K. 

 .96145 K. 

 .95848 K. 



12 







6 



18 



22 



49 



8fi 



133 



188 



251 



225 DeLuc.by 

 comparison. 

 320 

 388 

 489 

 687 

 754 

 1243 



1128 Dr Luc. 



1801 

 2417 



2520 De Luc. 



3100 



3855 



4152 



4400 De Luc, by 



18 



11 



5 



o 



5 



18 



22 



48 



S4 



130 



186 



SSO 



322 

 368 

 509 

 711 

 753 

 1247 



1818 

 2443 



3109 

 3802 

 4140 



comparison. 



Expansion. 

 Observed. Calculated. 



.00020 



.00018 



For 1°, 



.00004 



De Luc's experiments were only comparative ; hence the point of coincidence with Gilpin and Kiiwan is assumed 



upon a mean. His expansions vary more nearly as f*. 

 Hauksbee says, that water freed from air expands one third less by heat. Ph. tr. 1708. 22T. 

 Saturated brine. One fifth more than water. Robison. 



Sulfuric acid 



Sulfuric acid, sp. gr. 1.7 



Sulfuric acid, sp.gr. 1.84 



Muriatic acid, sp. gr. 1.1 9» 

 Nitrous acid, sp. gr. 1.43 



Spirit of turpentine 



