 Biographer Weissweiler does not dismiss the possibility that Busch 's increasing alcohol dependence hindered self @-@ criticism . He refused invitations to parties , and publisher Otto Basserman sent him to Wiedensahl to keep his alcohol problem undetected from those around him . Busch was also a heavy smoker , resulting in symptoms of severe nicotine poisoning in 1874 . He began to illustrate drunkards more often . 
 Biographer Weissweiler <a href='uninflect' title='1'><mark>does</mark></a> not dismiss <a href='None' title='2'><mark>the</mark></a><a href='negative_concord' title='3'><mark>possibility</mark></a> that Busch <a href='null_genetive' title='4'><mark>'s</mark></a>increasing alcohol dependence hindered self @-@ criticism . He refused invitations to parties , and publisher Otto Basserman sent him to Wiedensahl to keep his alcohol problem undetected from those around him . Busch was also a heavy smoker , resulting in symptoms of severe nicotine poisoning in 1874 . He began to illustrate drunkards more often . 
Biographer Weissweiler do not dismiss no possibility that Busch  increasing alcohol dependence hindered self @-@ criticism . He refused invitations to parties , and publisher Otto Basserman sent em to Wiedensahl to keep his alcohol problem undetected from those around him . Busch was also a heavy smoker , resulting in symptoms of severe nicotine poisoning in 1874 . He began to illustrate drunkards more often .