In a letter to the _Pall Mall Gazette_ of July 21, 1866, he first introduced his friend Arminius,[26] Baron Von Thunder-Ten-Tronckh, the cultivated and enquiring Prussian who had come to England to study our Politics, Education, Local Government, and social life. A series of similar letters followed at irregular intervals during the years 1866, 1867, 1869, and 1870. And Arminius' drastic method of questioning and arguing became the idoneous vehicle for Arnold's criticisms on such topics as our Foreign Policy, Compulsory Education, the Press, and the Deceased Wife's Sister. The letters were eventually collected in that little-read but most fascinating book, _Friendship's Garland_, which was published in 1871.[27] But before _Friendship's Garland_ came out, Arnold, who had tested his powers in social criticism by these fugitive pieces, addressed himself to a more serious and solid effort in the same field. The essays which eventually formed the book called _Culture and Anarchy_ began to appear in the _Cornhill Magazine_ for July, 1867, and were continued in 1868. The book was published in 1869. We saw at the outset that he himself said of his _Discourses in America_ that they, of all his prose-writings, were the writings by which he would most wish to be remembered. Many of his disciples would say that _Essays in Criticism_ was his most important work in prose. Some people would give the crown to _Literature and Dogma_. "It has been more in demand," the author told us in 1883, "than any other of my prose-writings." Respect is due to what a great master thought of his own work, and to what his best-qualified disciples think of it. But after all we uphold the right of private judgment, and the present writer is strongly of opinion that _Culture and Anarchy_ is Arnold's most important work in prose. It was, to borrow a phrase used by Mr. Gladstone in another connexion, not a book, but an event. We must consider it in its proper setting of time and circumstance.