The following anecdote will afford a proof of the delicacy and feeling of Bonnycastle's mind, and also of his excellent disposition. When his "Introduction to Astronomy" was published, it was reviewed with a considerable degree of asperity in a popular work of the day. Several of his scientific friends, and Reuben Burrow in particular, considered that it had not been fairly dealt with by the reviewer, and they determined to discover the writer: they at length found out that it was Mr. Wales, Mathematical Master of the School of Christ's Church Hospital. Burrow, who was a man of quick sensibility, and an excellent mathematician, was determined to avenge the cause of his friend, and constantly expressed anxiety for the appearance of some new book by Wales; at length one was published, upon "The Method of Finding the Longitude at Sea by Chronometers." Burrow procured a copy of this work, had it interleaved, and wrote numerous remarks on, and confutations of many parts of it, which he carried to Bonnycastle, and said, "As you have a more polished pen than myself, use these observations of mine, and make up a sharp review of this paltry book for the public." Bonnycastle lost no time in doing this, and was on his road to London, with the review in his pocket for publication, when he accidentally met Wales, who was then in so bad a state of health that he appeared to be in the last stage of a consumption. This affected the mind of Bonnycastle so strongly that, on his arrival in London, he immediately burnt the manuscript review, being determined not to hurt the feelings of a man labouring under disease, and thus perhaps to accelerate his death. In the year 1822, Fuseli was bereft of another old and valued friend, Mr. Coutts, the opulent banker, with whom he had been acquainted nearly sixty years. This gentleman had on many occasions afforded him valuable proofs of his sincere friendship. With him, and with his family during the latter period of his life, in particular, Fuseli was almost domesticated. By them, his very wishes were anticipated, and he received from their hands, such attentions as can arise only from feelings of respect and regard, accompanied by those comforts and elegancies which wealth alone can bestow. And I cannot refrain from expressing my conviction, that these attentions, which were afforded without the least ostentation, not only contributed to make the winter of his life pleasant, but really prolonged the existence of a man to whom the public are so much indebted as an artist, critic, and teacher of the Fine Arts.