sentences:  Gallus wrote a treatise 
  against it, and had to leave the city; services in the only Evangelical church there were discontinued.For a time Gallus preached for Cruciger (who was ill) at Wittenberg, then in 1549, through the influence of his brother in law, Heinrich Merkel, city secretary at Magdeburg, he went to the Ulrich Church in that city.He joined Flacius in opposition to the adiaphorism of the Wittenberg circle and published a "Disputation von Mitteldingen" in 1550.