| | Page |
| INTRODUCTION, | [5] |
| Observations on the Circulating and Nervous Systems of Frogs, | [6] |
| Experiments with Opium, | [9] |
| Corollaries from the above Facts and Experiments, | [12] |
| Summary of Experiments made on Animals with Metalline Substances, | [17] |
| Summary of Facts proved by the foregoing Experiments, | [35] |
| Resemblance of the Fluid put in Motion by the foregoing
Experiments to the Electrical Fluid, | [38] |
| The Nervous Fluid or Energy not the same with the
Electrical, nor with the Fluid put in Motion by the
foregoing Experiments, | [40] |
| General Conclusions, | [42] |