CONTENTS. XI 



Page. 

 Binary Compounds of Phosphorus with various 



bases, - 440 

 Phosphuretted Hydrogen and varieties, " 



Phosphuret of Sulphur, - 444 

 " Lime, - 445 



Sec. V. NITROGEN its Combinations with preceding simple 



bodies, - 446 

 Nitric Acid, - 



Deutoxide of Nitrogen or Nitrous Gas, - 453 

 Nitrous Acids general explanation, - 456 



Hypo-Nitrous Acid, - 457 

 Nitrous Acid, - 459 



Appendix to History of the Nitrous Acids, - 461 

 Nitrates of Alkalies, 464 



" Potassa, - " 



Soda, - - 473 



" Ammonia, - 474 



Nitrous Oxide or Protoxide of Nitrogen, 476 



Nitrates of the Earths, - - 486 



Baryta, - 



Strontia, - 486f 

 Lime, - 487 



Magnesia, .... 43$ 



Magnesia and Ammonia of Alumina, 489 



Nitr tes, - - - - * 



Recapitulation of Compounds of Oxygen and Nitro- 

 gen, ..... 

 Sec. VI. BORON and BORACIC ACID, 491 

 Boracic Acid, - " 

 Boron, - . 494 



Borate of Potassa Bi-Borate of Soda or Borax, - 496 

 " Ammonia Baryta Strontia, - 498 



" Lime Magnesia Alumina, - 499 

 Sec.VII.-FLUORic ACID, " 



Fluo-Silicic Acid Gas, - - - 502 



Fluo-Boric Acid Gas, - 505 



Fluoric Principles, - 506 

 Fluates General Characters, - 508 



Fluate and Bi-Fluate of Potassa, - - - 509 



" of Soda of Ammonia, - 510 



" Baryta Strontia Lime, - 511 

 " Magnesia Alumina, 512 



Silica, - - 513 

 Sec. VIII. SELENIUM, " 



Oxide of Selenium, - 515 

 Selenious Acid, 516 



Selenic Acid, - 517 



