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

PART II.

_Experiments and Observations made in the Year 1773, and the Beginning of
1774._

Sect. I. _Observations on ALKALINE AIR_ 163

Sect. II. _Of COMMON AIR diminished, and made noxious by various
processes_ 177

Sect. III. _Of NITROUS AIR_ 203

Sect. IV. _Of MARINE ACID AIR_ 229

Sect. V. _Of INFLAMMABLE AIR_ 242

Sect. VI. _Of FIXED AIR_ 248

Sect. VII. MISCELLANEOUS EXPERIMENTS 252

Sect. VIII. _QUERIES, SPECULATIONS, and HINTS_ 258

THE APPENDIX.

Number I. _EXPERIMENTS made by Mr. Hey to prove that there is no
OIL of VITRIOL in water impregnated with FIXED AIR_ 288

Number II. _A Letter from Mr. HEY to Dr. PRIESTLEY, concerning the
effects of fixed Air applied by way of Clyster_ 292

Number III. _Observations on the MEDICINAL USES of FIXED AIR. By
THOMAS PERCIVAL, M. D. Fellow of the ROYAL SOCIETY,
and of the SOCIETY of ANTIQUARIES in LONDON_ 300

Number IV. _Extract of a Letter from WILLIAM FALCONER, M. D. of BATH_ 314

Number V. _Extract of a Letter from Mr. WILLIAM BEWLEY, of GREAT
MASSINGHAM, NORFOLK_ 317

Num. VI. _A Letter from Dr. FRANKLIN_ 321

Number VII. _Extract of Letter from Mr. HENRY of MANCHESTER_ 323

THE INTRODUCTION.

SECTION I.

_A general view of PRECEDING DISCOVERIES relating to air._

For the better understanding of the experiments and observations on
different kinds of air contained in this treatise, it will be useful to
those who are not acquainted with the history of this branch of natu