1820.] SolubUitij of the Salts ill Water. 11 



the sulphate of soda does not then retain a quantity of water as 

 considerable as in low temperatures. 



Sohibiliti/ of ISHtrate of B^rytes. 



Temperature. Salt dissolved in 100 water. 



0-00" 5-00 



14-95 8-18 



17-62 8-54 



37-87 13-67 



49-22 17-07 



52-11 17-97 



73-75 25-01 



8G-21 29-57 



101-65 35-18 



Solubility of Nitre. 



Temperature. Sail dissolved in 100 water, 



0-00° 13-32 



5-01 16-72 



11-67 22-23 



17-91 29-31 



24-94 38-40 



35-13 54-82 



45-10 74-66 



54-72 97-05 



65-45 125-42 



79-72 169-27 



97-66 236-45 



Sohibiliti/ of Chlorate of Potash. 



Temperature. 



0-00° 3-33 



13-32 5-60 



15-37 6-03 



24-43 8-44 



35-02 12-05 



49-08 18-96 



74-89 35-40 



104-78 60-24 



The lines of solubihty of these three salts are represented in 

 the plate. They show at once to the eye that the solubility of 

 each salt, especially nitre, increases at a great rate. It would 

 liave been possible to have represented them by algebraic for- 

 mulas, but their graphical hnes have the advantage of giving 

 immediately, and without calculation, and with almost as great 

 precision, the solubility for all temperatures between which the 

 experiments were made. I intend to give in a second paper the 

 solubility of a greater number of salts, and to present them under 

 the form of tables for every five degrees of temperature at least. 



3 



