 In September 1847 Busch began studying mechanical engineering at Hanover Polytechnic . Busch 's biographers are not in agreement as to why his Hanover education ended ; most believe that his father had little appreciation of his son 's artistic inclination . Biographer Eva Weissweiler suspects that Kleine played a major role , and that other possible causes were Busch 's friendship with an innkeeper , Brümmer , political debates in Brümmer 's tavern , and Busch 's reluctance to believe every word of the Bible and catechism . 
 In September 1847 Busch began studying mechanical engineering at Hanover Polytechnic . Busch <a href='null_genetive' title='1'><mark>'s</mark></a>biographers <a href='negative_concord' title='2'><mark>are</mark></a> <a href='negative_concord' title='3'><mark>not</mark></a>in <a href='negative_concord' title='4'><mark>agreement</mark></a> as to why his Hanover education ended ; most believe that his father had little appreciation of his son <a href='null_genetive' title='5'><mark>'s</mark></a>artistic inclination . Biographer Eva Weissweiler <a href='uninflect' title='6'><mark>suspects</mark></a> that Kleine played a major role , and that other possible causes <a href='uninflect' title='7'><mark>were</mark></a> Busch <a href='null_genetive' title='8'><mark>'s</mark></a>friendship with an innkeeper , Brümmer , political debates in Brümmer <a href='null_genetive' title='9'><mark>'s</mark></a>tavern , and Busch <a href='null_genetive' title='10'><mark>'s</mark></a>reluctance to believe every word of the Bible and catechism . 
In September 1847 Busch began studying mechanical engineering at Hanover Polytechnic . Busch  biographers ain't in no agreement as to why his Hanover education ended ; most believe that his father had lil appreciation of his son  artistic inclination . Biographer Eva Weissweiler suspect that Kleine played a major role , and dat other possible causes was Busch  friendship wit an innkeeper , Brümmer , political debates in Brümmer  tavern , and Busch  reluctance to believe every word of the Bible and catechism .