collateral information he could
obtain. He avoided almost all society; and it is said, he never
allowed himself, at this time, more than four hours sleep out of the
twenty four. The famous Dr. Brown was then delivering lectures on his
new theory of medicine. Dr. Garnett, fired with the enthusiasm of
this noted teacher, and struck with the conformity of his theory to
the general laws of nature, became one of the most zealous advocates
of his doctrine; and from this period, he took, during the remainder
of his life, every opportunity of supporting it.

During two summers he returned to Mr. Dawson at Sedbergh, passing the
intervening winters in Edinburgh: about this time he wrote the essay,
which, in the year 1797, he published under the title of a Lecture on
Health, which very neatly and perspicuously explains the fundamental
parts of the Brunonian theory of medicine: in September 1788, he
published his inaugural dissertation de Visu, and obtained the degree
of M.D. Very soon afterwards he went to London, to pursue his
professional studies, which he continued to do with the greatest
perseverance: he attended with unceasing diligence the lectures of
the most eminent lecturers, and he sought practical knowledge in the
chief hospitals of the metropolis with the most ardent zeal; so that
whilst he gained information to himself, he set an impressive example
to his contemporary medical students, who in the delusive pursuits of
a great city, are too apt to neglect the objects their parents had in
view in sending them to the capital. Having finished his studies in
London, Dr. Garnett, in 1789, returned to his parents. At the time he
left London, he had lost none of his ardour; still he continued
indefatigable and observant. He had been flattered and respected by
his fellow students, and praised by his seniors; and his previous
success animated him with the strongest expectation of future
advancement. At this time, it is supposed, he wrote the justly
admired Treatise on Optics, which is in the Encyclopaedia Britannica.
Soon after his establishment as a physician, at Bradford, in
Yorkshire, which took place in the year 1790, he began to give
private lectures on philosophy and chemistry. He wrote his treatise
on the Horley Green Spa; and in a short time, gained a deserved
character of ingenuity and skill as a chemist, a physician, and a
benevolent member of society. Bradford did not afford scope for his
practice as a physician, eq