M. Mouhot, therefore, returned to France to his father and to a loved brother, who became the companion of his new travels in Germany, Belgium, and the north of Italy; and everywhere they laboured by means of photography to make known the works of the great masters and the beauties of the country, exercising their profession like real artists. They afterwards resolved to visit Holland, where photography was less widely known than in other countries. After staying there some time they removed their establishment to England in 1856, the more willingly as they had both married English ladies, relatives of Mungo Park, and having friends willing to push on the two young men, who, full of energy, possessed the qualities necessary for success in an artistic or scientific career. During some ensuing years the two brothers pursued their calling together, and shared each other’s pleasures and cares; but Henri afterwards found in a peaceful life at Jersey an opportunity of resuming his studies in Natural History, devoting himself particularly to Ornithology and Conchology. These studies revived in him the desire for foreign travel; and beautiful as was the island where he lived--and where his time was divided between his home, his books, and out-door pursuits--his thirst for knowledge made him long for a wider field of research, and one less explored by modern travellers. An English book on Siam came into his possession about this time, as though sent by the hand of destiny, and to visit that country became the object of his aspirations. The great Geographical and Zoological Societies of London, capable of appreciating the man of merit, approved of his project, and aided him efficaciously in its prosecution; and M. H. Mouhot quitted his wife, brother, and all his friends and every advantage of civilization, in order to visit, in the cause of science, regions little known, but where, through much fatigue and danger, the prospect of a glorious future opened itself before him. He was already well prepared for the life; active, strong, and blessed with an excellent constitution: his physical strength was beyond the average--a result of the gymnastic sports in which he had taken pleasure in his youth, and of his habitual sobriety. He had never had an attack of fever, nor any other illness; and he resisted for four years the effects of a tropical climate, incredible fatigue, bad food, and nights passed in forests, without any apparent loss of health or strength, which is doubtless to be attributed to his never taking spirits, and wine only very sparingly.