He became a tutor of Trinity College and crossed swords with Henry Edward Manning over Roman Catholic ethics.
[1][2] Prompted by the First Vatican Council of 1869–1870, Meyrick visited Ignaz von Döllinger at the time of his excommunication, and he also attended and helped to organise the Bonn conferences on reunion in 1874 and 1875.
In 1892 he travelled with Lord Plunket, Archbishop of Dublin, to Spain in support of the Protestant Reformed Church there.
In 1894, Plunket consecrated Juan Bautista Cabrera, the Bishop-elect of the Spanish Reformed Church, as a bishop, and Meyrick drew up a public address in support of him.
He was thought to have failed to gain promotion in the Church of England due to being controversially zealous.