CHAPTER VI.
THE EDINBURGH LECTURES (1853-1854) By the end of June, 1853, "Stones of Venice" was finished, as well as a description of Giotto's works at Padua, written for the Arundel Society.
The social duties of the season were over; Ruskin and his wife went north to spend a well-earned holiday.

At Wallington in Northumberland, staying with Sir Walter and Lady Trevelyan, he met Dr.John Brown at Edinburgh, author of "Pet Marjorie" and other well-known works, who became his lifelong friend.

Ruskin invited Millais, by this time an intimate and heartily-admired friend,[4] to join them at Glenfinlas.
Ruskin devoted himself first to foreground studies, and made careful drawings of rock-detail; and then, being asked to give a course of lectures before the Philosophical Society of Edinburgh, he was soon busy writing once more, and preparing the cartoon-sketches, "diagrams" as he called them, to illustrate his subjects.

Dr.Acland had joined the party; and he asked Millais to sketch their host as he stood contemplatively on the rocks with the torrent thundering beside him.

The picture with additional work in the following winter, became the well-known portrait in the possession of Sir Henry Acland, much the best likeness of this early period.
[Footnote 4: "What a beauty of a man he is!" wrote old Mr.Ruskin, "and high in intellect....