It is said that when the boy Davy first saw Mr. Davies Gilbert's laboratory his tumultuous delight knew no bounds. Other appreciative friends now came forward; amongst them Dr. Edwards of Hayle Copper House, and Professor Hailstone, and Dr. Beddoes, representatives of the rival geological schools of Neptunists and Plutonists, as they were then called, to both of whom Davy was able to render valuable information; though he himself, with his usual sagacity, sided with the Plutonists. Gregory Watt, the youngest son of the renowned James Watt, was another of Davy's early acquaintances at Penzance; and from Watt the youth derived much valuable information and advice. One result was the offer of an appointment, when he was about nineteen years old, as assistant in Dr. Beddoes's Pneumatic Hospital, at Dowry Square, Clifton,[105]--an establishment founded for the purpose of investigating the nature of the gases, with especial reference to their remedial influences. This was an appointment after the young chemist's own heart. The salary was sufficient for his modest wants, and he forthwith renounced all claims to his share of the small family property, in favour of his mother and sisters. He threw himself at once with ardour into his work, and originated those celebrated but highly dangerous experiments on the effects of nitrous oxide, which indeed nearly cost him his own life, but which in their result have alleviated the sufferings of tens of thousands of his fellow-creatures. The description of one of the 'séances,' when experiments were tried on many different persons--including Southey, then Poet Laureate--were described by Davy in an amusing little poem. The friendship with Southey was not only on a scientific basis;--the Poet recognised his brother-poet's faculty: and accordingly Southey submitted to Davy the proofs of his mystic poem 'Thalaba,' for criticism; whilst the younger bard contributed to the 'Anthology' of the elder. And while on this subject it may be added that Coleridge (another of his Clifton acquaintances), who often referred to Davy's enchanting manners, used to say, so Barrow tells us, that he was in the habit of attending Davy's lectures at the Royal Institution, 'in order to increase his stock of metaphors.' On another occasion Coleridge remarked: 'There is an energy and elasticity in Davy's mind which enables him to seize on and analyze all questions, pushing them to their legitimate consequences. Every subject in Davy's mind has the principle of vitality--living thoughts spring up, like the turf under his feet.' And Davy, of course, could not fail to admire the genius of Coleridge--it was he who persuaded the dreamy poet to give his well-known series of eighteen lectures on Shakespeare at the Royal Institution in 1808. Horne Tooke was another of Davy's admirers, and was so enchanted with him early in his career that he engaged Chantry to make a bust of the Cornish philosopher.