His intellectual and moral qualities did not seem less to promise success; both a _savant_ and an artist, he was also an indefatigable hunter, and had a degree of kindness mingled with his courage which was sure to gain the good-will of the uncivilized people among whom he had to live. In all these respects M. Mouhot fulfilled the expectations of the savans of England and of his numerous friends, as is evident by the rich collections made by him in so short a time, by the cordial welcome which he met with throughout his travels, by the respect paid to him by all learned men, and by the unanimous feelings of regret at his death, both in England and on the Continent. Although a Protestant, he inspired sincere friendships among the Catholic missionaries in Siam and the other countries he visited from 1858 to 1861, friendships which are clearly shown in his journal and letters. We shall not say much about his travels; they form the subject of this work, which, even in its unfinished state, we trust will present much important information to the geographer and archæologist, to the naturalist and linguist. Many capable of judging have already hastened to pay their tribute of praise to the traveller who has enriched such various branches of science, and displayed to the world the riches of the extreme East. M. Mouhot dedicated the last four years of his life to exploring the interior of Siam; he first travelled through that country, then through Cambodia, and afterwards re-ascended the Mekong as far as the frontiers of Laos; visited one of the savage and independent tribes inhabiting the district between those two countries and Cochin China; then, after having crossed the great lake Touli-Sap, he explored the provinces of Ongcor and Battambong, where he discovered splendid ruins, especially the Temple of Ongcor the Great, which is nearly perfect, and perhaps unparalleled in the world. Passing from the basin of the Mekong into that of the Menam, he saw mountains of which the principal peak was more than 6000 feet high. He returned occasionally to Bangkok, the capital of Siam, in order to make preparations for fresh expeditions. The loss, by the wreck of the _Sir James Brooke_, of a very valuable collection, did not discourage him; but he set about at once to replace it. At the time of his death, which happened on 10th November, 1861, he was _en route_ for the provinces south-west of China, when, having already penetrated far into the interior, he was attacked by the jungle fever, and died after twenty-two days’ illness. His energetic mind, full of the task he had to perform, remained clear to the end, and a few last words were written by him, his strength of will overcoming his weakness.