In the [fourth Research] the history of the respirability and extraordinary effects of nitrous oxide is given, with details of experiments on its powers made by different individuals.
I cannot close this introduction, without acknowledging my obligations to Dr. Beddoes. In the conception of many of the following experiments, I have been aided by his conversation and advice. They were executed in an Institution which owes its existence to his benevolent and philosophic exertions.
Dowry-Square, Hotwells, Bristol.
June 25th, 1800.
RESEARCH I.
concerning the analysis of
NITRIC ACID and NITROUS GAS
and the production of
NITROUS OXIDE.
Pl. I.
MERCURIAL AIRHOLDER and BREATHING MACHINE.
Lowry sculpᵗ.