Table of Contents.
| Page. | ||
| I | Introduction | 1 |
| II | Description of Apparatus | 3 |
| III | Action of Manganese Dioxide on | |
| Potassium Permanganate in acid solution | 9 | |
| IV | Action of a Black Oxide of Manganese on | |
| Potassium Permanganate | 24 | |
| V | The Amount of Nitric Acid Neutralized | 31 |
| VI | The Stability of Manganese Dioxide | 34 |
| VII | The Effect of Varying Quantities of | |
| Manganese Oxide and Potassium Permanganate | 39 | |
| VIII | The Reduction of Neutral Potassium Permanganate | |
| by Manganese Oxide at Ordinary Temperature | 45 | |
| IX | Action of Potassium Permanganate upon a | |
| Manganese Oxide Obtained from Manganese | ||
| Dioxide by Spontaneous Decomposition | 50 | |
| Conclusion | ||