I should like to take this Opportunity Of thanking Professor Campbell Fraser, whose work, extending over two-thirds of a century, has done so much to bring philosophical and theological thought into close and vital contact, for his interest in the doings of a philos opher Of the third generation. To Professor Pringle Pattison and Professor Seth I am indebted for much help and stimulus, given at first in the class-room, but afterwards in a freer and wider relation than that of lecturer and — student. Of other friends who have assisted by criticism and suggestion, I must especially acknow ledge my indebtedness to Dr D. M. Ross, and to the Rev. J. M. Shaw, who has spent much time and care on the correction of the proofs.
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