The brief and imperfect notices of this Lady's system, which the Doctor had met with in the course of his reading, made him very desirous of procuring her works: this it would not be easy to do in England at this time, and then it was impossible. He obtained them however through the kindness of Mason's friend, Mr. Burgh, whom he used to meet at Mr. Copley's at Netterhall, and who in great or in little things was always ready to render any good office in his power to any person. Burgh procured the book through the Rev. Edward Clarke (father of Dr. Clarke the traveller) then Chaplain to the British Embassador in Spain. The volume came with the despatches from Madrid, it was forwarded to Mr. Burgh in an official frank, and the Doctor marked with a white stone the day on which the York carrier delivered it at his house. That precious copy is now in my possession;[4] my friend has noted in it, as was his custom, every passage that seemed worthy of observation, with the initial of his own name—a small capital, neatly written in red ink. Such of his books as I have been able to collect are full of these marks, showing how carefully he had read them. These notations have been of much use to me in my perusal, leading me to pause where he had paused, to observe what he had noted and to consider what had to him seemed worthy of consideration. And though I must of necessity more frequently have failed to connect the passages so noted with my previous knowledge as he had done, and for that reason to see their bearings in the same point of view, yet undoubtedly I have often thus been guided into the same track of thought which he had pursued before me. Long will it be before some of these volumes meet with a third reader; never with one in whom these vestiges of their former owner can awaken a feeling like that which they never fail to excite in me! [Footnote 4: This curious book I unluckily missed at the Sale of Southey's Library. I was absent at the time, and it passed into private hands. It sold for thirteen shillings only. See No. 3453. The title is as follows;—_Sabuco (Olivia) Nueva Filosofia de la Naturaleza del hombre, no conocida ni alcançada de los Grandes Filosofos Antiguos_. FIRST EDITION. _Madrid, 1587_.]