Clarke now spent some time with his mother and family at Uckfield, and in the autumn of the same year undertook, at the recommendation of the Bishop of St. Asaph, the care of Sir Thomas Mostyn, a youth of about seventeen. This engagement continued about a year, during which period he resided with his pupil in Wales, where he became known to Pennant, with whom he afterward maintained a correspondence. When this connexion had, from some unexplained causes, ceased to exist, our traveller undertook a small periodical work called “Le Rêveur,” which, when twenty-nine numbers had been published without success, was judiciously discontinued, and sunk so completely into oblivion that not a single copy, it is believed, could now be found. In the autumn of 1796 Clarke entered into an engagement with the family of Lord Uxbridge, which, under whatever auspices begun, was highly beneficial to himself and satisfactory to his employers. The youth first placed under his care, delicate and feeble in constitution, soon fell a prey to disease; but the next youngest son of the family, the honourable Berkeley Paget, succeeded his brother; and with him, in the summer and autumn of 1797, our traveller made the tour of Scotland. This was in every respect an agreeable and fortunate journey for our traveller, who not only enjoyed the scenery, wild, varied, and beautiful, which the north of England and many parts of Scotland afford, but secured in his pupil a powerful friend, who, so long as our traveller lived, promoted his interests, and when his life had closed, continued the same benevolent regard to his family. On the termination of his connexion with Mr. Paget, who was now sent to Oxford, Clarke retired to Uckfield, where, for a time, he seemed entirely immersed in the pleasures of field-sports. His devotion to this species of amusement, however, was destined to be of short duration. A young gentleman of Sussex, whose education had been very much neglected, succeeded about this time to a considerable estate, upon which he intimated his desire of placing himself for three years under the guidance and instruction of our traveller, first at Cambridge, and afterward during a long and extensive tour upon the Continent. The pecuniary part of the proposal was very liberal, says Mr. Otter, and the plan was entered upon without delay. The traveller and his pupil remained a whole year at Cambridge, during which the former, who fully understood the advantages of knowledge, and had been hitherto prevented by his wandering life from pursuing any regular course of study, profited quite as much as the latter.