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 given to natural history and the easier parts of physical science; the second to mathematics and natural philosophy.

During 1751-52, which was his first session, Reid as regent taught natural philosophy to undergraduates of the third year; in the following winter the same students, in their fourth year, were still in his charge. His full sequence, accordingly, did not commence till 1753-54, when for the first time he took the second class, consisting of those beginning philosophical studies. So his successive three years courses ran thus:—1753-56, 1756-59, 1759-62. In the last year of each course, as 'promoter,' he presented his undergraduates to receive the Master’s degree, and also delivered a graduation thesis. His theses (still extant in manuscript at Birkwood) were in Latin; they deal chiefly with the methods and human conditions of philosophical inquiry.

Two-thirds of Reid’s lectures at King’s College were in this way concerned with natural history and applied mathematics: only one-third was given to the central object of his intellectual interest at New Machar. I have examined a manuscript volume of notes of the lectures in 'Natural Philosophy' which he gave in 1757-58. They comprehend, after an introductory exposition of the province and methods of physics, the laws of motion, astronomy, optics, electricity, and hydrostatics. The notes show that Reid was well abreast of the physical science of his time.

At the time of Reid’s appointment as a regent of philosophy in King’s College, the alternative of regency or professoriate was discussed in the University. He entered readily into this and other questions of University reform, and prevailed on his colleagues to make some important changes. Largely through his influence the teaching