further elucidation was necessary, I have referred to standard authorities, amongst whom I would gratefully commemorate the works of Mr. Mansel and Dr. Whately, not forgetting my solitary predecessor in this laborious undertaking, Thomas Taylor, whose strict integrity in endeavouring to give the meaning of the text deserves the highest commendation. For books placed at my disposal I have especially to express my sincere acknowledgments to the Rev. Dr. Hessey, Head Master of Merchant Tailors' School, and John Cuninghame, Esq. of Lainshaw.
By an alteration in the original plan, it has been found requisite, in order to equalize the size of the volumes, to place Porphyry's Introduction at the close, instead of at the commencement, of the Organon.
O. F. O.
Burstow, June 23, 1853.
