CHAP. VI.--Of Pneumato-chemical Distillations, Metallic Dissolutions, and some other operations which require very complicated instruments, 390 SECT. I.--Of Compound and Pneumato-chemical Distillations, ibid. SECT. II.--Of Metallic Dissolutions, 398 SECT. III.--Apparatus necessary in Experiments upon Vinous and Putrefactive Fermentations, 401 SECT. IV.--Apparatus for the Decomposition of Water, 404 CHAP. VII.--Of the Composition and Use of Lutes, 407 CHAP. VIII.--Of Operations upon Combustion and Deflagration, 414 SECT. I.--Of Combustion in general, ibid. SECT. II.--Of the Combustion of Phosphorus, 418 SECT. III.--Of the Combustion of Charcoal, 422 SECT. IV.--Of the Combustion of Oils, 426 SECT. V.--Of the Combustion of Alkohol, 433 SECT. VI.--Of the Combustion of Ether, 435 SECT. VII.--Of the Combustion of Hydrogen Gas, and the Formation of Water, 437 SECT. VIII.--Of the Oxydation of Metals, 441 CHAP. IX.--Of Deflagration, 452 CHAP. X.--Of the Instruments necessary for Operating upon Bodies in very high Temperatures, 460 SECT. I.--Of Fusion, ibid. SECT. II.--Of Furnaces, 462 SECT. III.--Of increasing the Action of Fire, by using Oxygen Gas instead of Atmospheric Air, 474 APPENDIX. No. I.--TABLE for Converting Lines, or Twelfth Parts of an Inch, and Fractions of Lines, into Decimal Fractions of the Inch, 481 No. II.--TABLE for Converting the Observed Heighth of Water in the Jars of the Pneumato-Chemical Apparatus, expressed in Inches and Decimals, into Corresponding Heighths of Mercury, 482 No. III.--TABLE for Converting the Ounce Measures used by Dr Priestley into French and English Cubical Inches, 483 No. IV.--TABLE for Reducing the Degrees of Reaumeur's Thermometer into its corresponding Degrees of Fahrenheit's Scale, 484 No. V.--ADDITIONAL.--RULES for Converting French Weights and Measures into correspondent English Denominations, 485