Career
In 1877 he became professor at the University of Erlangen. From 1874 to 1890 he was the editor of the Zeitschrift für deutsches Altertum. He is best known for Die kleineren althochdeutschen Sprachdenkmaler (1916) and the Althochdeutsche Glossen (five volumes, 1879-1922, with Eduard Sievers).
His correspondence with Robert Priebsch was edited and published by Priebsch"s son-in-law August Closs.