PART I.

Experiments and Observations made in, and before the Year 1772. 23

Sect. I. Of FIXED AIR 25

Sect. II. Of AIR in which a CANDLE, or BRIMSTONE, has burned out 43

Sect. III. Of INFLAMMABLE AIR 55

Sect. IV. Of AIR infected with ANIMAL RESPIRATION, or PUTREFACTION 70

Sect. V. Of AIR in which a mixture of BRIMSTONE and FILINGS of IRON has stood 105

Sect. VI. Of NITROUS AIR 108

Sect. VII. Of AIR infected with the FUMES of BURNING CHARCOAL 129

Sect. VIII. Of the effect of the CALCINATION of METALS, and of the EFFLUVIA of PAINT made with WHITE-LEAD and OIL, on AIR 133

Sect. IX. Of MARINE ACID AIR 143

Sect. X. Miscellaneous Observations 154