M.Daguerre has realized in the most exquisite manner this idea." Here follows the account of his visit to Daguerre and an enthusiastic description of the wonders seen in his workshop, and he closes by saying:-- "But I am near the end of my paper, and I have, unhappily, to give a melancholy close to my account of this ingenious discovery.

M.Daguerre appointed yesterday at noon to see my Telegraph.

He came and passed more than an hour with me, expressing himself highly gratified at its operation.

But, while he was thus employed, the great building of the Diorama, with his own house, all his beautiful works, his valuable notes and papers, the labor of years of experiment, were, unknown to him, at that moment the prey of the flames.

His secret, indeed, is still safe with him, but the steps of his progress in the discovery and his valuable researches in science, are lost to the scientific world.