Our non-Catholic friends often ask us questions, in particular about our Catholic attitude to themselves, for most of those who are anxious about Christian unity inevitable feel that their own position in relation to the Catholic Church is a key-issue in the whole matter. In the September Number of Una Sancta a prominent Lutheran theologian asks of his Catholic friends five questions, which to him represent The major problem of a Protestant considering the relation of Catholic and Protestant. The writer is Dr Hans Asmussen of Heidelberg, and his five questions are enquiries about the Catholic attitude towards Protestants on certain issues. The same questions mutatis mutandis mignt be asked by an Anglican or Free Churchman in this country, though every group would present the questions in a different context and perhaps add particular ones of their own.