 Complete the following phrase:  In 1867 Cassel was appointed missionary by the London Society for Promoting Christianity Amongst the Jews a Jewish Christian missionary society now known as the Churchs Ministry Among Jewish People or CMJ, a position which he retained till March 1891. At the same time 1867 Cassel was assigned to the pastorate of the Christuskirche in Berlin, with over a thousand sittings, erected from 1863 to 1864 by the Society on Königgrätzer Straße renamed as Stresemannstraße, now in Kreuzbergs part of the 