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188 inflamed feelings of the period, the secrecy of the sources, instead of proving a prima facie objection to the probability that a tissue of open national outrages, prompted by passion, and unguided by pre-arranged motive, could be the consequence of what was so carefully concealed, or rather overlooked, served to inflame the spirit of mystery, which other branches of literature were then fostering; and the book was rapidly sold to the extent of four editions, and was greedily read. In an age which has acquired the power of influencing masses of men by public opinions, secret tenets or intentions do not acquire numerous followers. That there were some grounds in opinion, and even in intention for many of the statements of Mr Robison, may be granted; but a few German enthusiasts, pleased with mysticism, were the only conspirators, and the appalling statements in the works which he used as authorities, were from men still more given to credulity, than the persons of whom they spoke were to mystery.

In 1799, professor Robison was employed in the difficult task of preparing for the press the manuscript lectures and notes of Dr Black, who had just died. "Dr Black," says Robison's biographer, "had used to read his lectures from notes, and these often but very imperfect, and ranged in order by marks and signs only known to himself. The task of editing them was, therefore, difficult, and required a great deal both of time and labour; but was at last accomplished in a manner to give great satisfaction." Meanwhile, however, the discoveries of Dr Black had produced many alterations in chemistry, and the science had assumed a new aspect. Among other things, the new nomenclature of Lavoisier, had been almost universally received, and rendered any work which did not adopt it, antiquated, and comparatively useless. It was supposed that Robison, with some labour, but without any injustice to the labours of his friend, might have adopted it; but he preferred the system in the original: a choice attributed by some to respect for the memory of his friend, and by others to prejudice. He sent a copy of his publication to the emperor of Russia, and received in return a box set in diamonds, and a letter of thanks.

Professor Robison had long intended to digest his researches into a work, to be entitled "Elements of Mechanical Philosophy, being the Substance of a Course of Lectures on that science." The first volume of this work, containing Dynamics and Astronomy, he published in 1804 ; but he did not live to complete it. In the end of January, 1805, he yielded to the lingering disorder, which had long oppressed his body, before it enervated his mind. His biographer gives the following account of his character. "He possessed many accomplishments rarely to be met with in a scholar, or a man of science. He had great skill and taste in music, and was a performer on several instruments. He was an excellent draughtsman, and could make his pencil a valuable instrument, either of record or invention. When a young man, he was gay, convivial, and facetious, and his vers de societe flowed, I have been told, easily and with great effect. His appearance and manner were in a high degree favourable and imposing: his figure handsome, and his face expressive of talent, thought, gentleness, and good temper. When I had first the pleasure to become acquainted with him, the youthful turn of his countenance and manners was beginning to give place to the grave and serious cast, which he early assumed; and certainly I have never met with any one whose appearance and conversation were more impressive than his were at that period. Indeed, his powers of conversation were very extraordinary, and, when exerted, never failed of producing a great effect. An extensive and accurate information of particular facts, and a facility of combining them into general and original views, were united in a degree, of which I am persuaded there have been few exam-