| STEEL PLATES. | |
| JAMES CLERK MAXWELL. Engraved by Stodart, after a Photograph by Fergus of Greenock |
Frontispiece. |
| John Clerk Maxwell, Æt. 66. Engraved by Stodart, after Sir John Watson Gordon, R.A. |
To face page 11 |
| Mrs. Clerk Maxwell and “Boy.” Engraved by Stodart, after William Dyce, R.A. |
To face page 29 |
| LITHOGRAPHS. | |
| Facsimile Letter | To face page 58 |
| The Vampyre, Compylt into Meeter, by Jas. Clerka Maxwell |
To face page 70 |
| COLOURED PLATES. | |
| Diagram showing the Relations of Light | To face page 473 |
| Diagram illustrating the Chromatic Relations of Coloured Papers |
To face page 474 |
| Chromatic Effects of a Pentagon of Unannealed Glass in Polarised Light |
To face page 487 |
| Isochromatic Lines In A Triangle Of Unannealed Glass |
To face page 487 |
| Diagram Showing The Colours Exhibited By A Plate Of Gelatine When Exposed To A Torsional Shear |
To face page 491 |