In 1906 Wilson 's season 's bowling average , which with the exception of 1904 had remained in the low twenties throughout his career , ballooned to 36.09 .
At the end of that season Wilson retired from first - class cricket .
In 1906 Wilson 's season 's bowling average , which with the exception of 1904 had remained in the low twenties throughout his career , ballooned to 36.09 , and at the end of that season he retired from first - class cricket .