Activity and originality of mind, with a persistent habit of inquiry and experiment, brought Davy friends who could appreciate and help him. When Dr. Beddoes, of Bristol, was examining the Cornish coast, in 1798, he came upon young Humphry Davy, was told of researches made by him, and urged to engage him as laboratory assistant in a Pneumatic Institution that he was then establishing in Bristol. Davy went in October, 1798, then in his twentieth year; but his good friend, and grandfather by adoption, had set his heart upon Humphry’s becoming an eminent burgeon, and even altered his will when his boy yielded to the temptation of a laboratory for research. Men also know something of the trouble of the hen who has a chance duckling in her brood, and sees that contumacious chicken run into the water deaf to all the warnings of her love.

At Bristol Humphry Davy came into companionship with Coleridge and Southey, who were then also at the outset of their career, and there are poems of his in the Poetical Anthology then published by Southey. But at the same time Davy contributed papers on “Heat, Light, and the Combinations of Light,” on “Phos-Oxygen and its Combinations,” and on “The Theory of Respiration,” to a volume of West Country Collections, that filled more than half the volume. He was experimenting then on gases and on galvanism, and one day by experiment upon himself, in the breathing of carburetted hydrogen, he almost put an end to his life.

In 1799 Count Rumford was founding the Royal Institution, and its home in Albemarle Street was then bought for it. The first lecturer appointed was in bad health, and in 1801 he was obliged to resign. Young Davy was now known to men of science for the number and freshness of his experiments, and for the substantial value of his chemical discoveries. It was resolved by the managers, in July, 1801, that Humphry Davy be appointed Assistant-Lecturer in Chemistry, Director of the Chemical Laboratory, and assistant-editor of the journals of the Royal Institution. His first remuneration was a room in the house, coals and candles, and £100 a year. Count Rumford held out the prospect of a professorship with £300 a

year, and the certainty of full support in the use of the laboratory for his own private research. His age then was twenty-three. He at once satisfied men of science and amused people of fashion. His energy was unbounded; there was a fascination in his personal character and manner. He was a genial and delightful lecturer, and his inventive genius was continually finding something new. A first suggestion of the process of photography was dropped incidentally among the records of researches that attracted more attention. Davy had been little more than a year at the Royal Institution when he was made its Professor of Chemistry. After another year he was made a Fellow. Dr. Paris, his biographer, says that “the enthusiastic admiration which his lectures obtained is at this period scarcely to be imagined. Men of the first rank and talent—the literary and the scientific, the practical, the theoretical—blue-stockings and women of fashion, the old and the young, all crowded—eagerly crowded—the lecture-room.” At the beginning of the year 1805 his salary was raised to £400 a year. In May of that year the Royal Society awarded to him the Copley Medal. Within the next two years he was elected Secretary of the Royal Society. Since 1800 he had been advancing knowledge by experiments with galvanism. The Royal Institution raised a special fund to place at his disposal a more powerful galvanic battery than any that had been constructed. The fame of his discoveries spread over Europe.

The Institute of France gave Davy the Napoleon Prize of three thousand francs for the best experiments in galvanism. Dublin, in 1810, paid Davy four hundred guineas for some lectures upon his discoveries. The Farming Society of Ireland gave him £750 for six lectures on chemistry applied to agriculture. In the following year he received more than a thousand pounds for two courses of lectures at Dublin, and was sent home with the honorary degree of LL.D. In April, 1812, he was knighted, resigned his professorship at the Royal Institution, and “in order more strongly to mark the high sense of his merits” he was elected Honorary Professor of Chemistry. In the same month Davy married a young and rich widow, who had charmed all Edinburgh by her beauty and her wit. Two months after marriage Sir Humphry Davy dedicated to his wife his “Elements of

Chemical Philosophy.” In March, 1813, he published his “Elements of Agricultural Chemistry.” He travelled abroad, and was received with honour by the chief men of science in all places that he visited. When, at Pavia, he first met Volta: he found that Volta had put on full-dress to receive him.

In August, 1815, Davy’s attention was drawn to the loss of life by explosions of fire-damp, and by the end of the year he had devised his safety-lamp. The coal owners subscribed £1,500 for a testimonial, gave him also a dinner and a service of plate. In October, 1818, he was made a baronet. In November, 1820, he was elected President of the Royal Society.

His next researches were chiefly on electro-magnetism and the protection of the copper sheathing on ships’ bottoms. At the end of 1826 his health failed seriously. He went to Italy; resigned, in July, 1827, the Presidency of the Royal Society; came back to England, longing for “the fresh air of the mountains;” wrote and published his “Salmonia, or Days of Fly-fishing.” In the spring of 1828 he left England again. He was at Rome in the winter of 1829, still engaged in quiet research, and it was then that he wrote his “Consolations in Travel; or, the Last Days of a Philosopher.” His wife, who shone in London society, did not go with him upon this last journey, but travelled day and night to reach him when word came to her and to his brother John, who was a physician, that he had again been struck with palsy and was dying. That stroke of palsy followed immediately upon the finishing of the book now in the reader’s hand. Davy lived to see again his wife and brother, rallied enough to leave Rome with them, and had got as far as Geneva on the 28th of May, 1829. He died in the next night.

H. M.

A NOTE,