Here, on the resignation of Bishop Low, he accepted the offer of the Scottish See of Moray and Ross; he was consecrated at Old Saint Paul's, Edinburgh, 9 March 1851.

He was on the most intimate terms of friendship with Archbishop Longley and Bishops Blomfield, Selwyn, Hamilton, and Wilberforce, the last of whom said that his power of surmounting difficulties was just that of his ability at school to jump over anything that he could reach with his nose.

Among his most noticeable public acts were his cordial recognition of M. Loyson (Père Hyacinthe); his co-operation with the Duke of Buccleuch in removing the disabilities of Scottish orders in the ministry of the Church of England; his labours to promote union with the Eastern church; and his enlisting Archbishop Longley to take part in the foundation of Inverness Cathedral.

His defence, in opposition to all the other Scottish bishops, of Bishop Wilberforce, who had held an English service in the presbyterian chapel of Glengarry, Inverness-shire, was perhaps due less to the somewhat Erastian tone which uniformly pervaded Eden's political acts than to the mollifying effect produced by the personal visit of Wilberforce.

A small body of reformers aimed at replacing this society by an organisation which should represent every congregation, and those who had worked hard and generously on the old lines were opposed to this.

His published works were: In addition, he wrote prefaces to Reginald Shuttle's translation of the Heliotropium: Conformity of the Human Will to the Divine by Jeremias Drexel (Drexelius), and to Dmitry Tolstoy's Romanism in Russia.