If the BL British Newspaper Archive hasn't yet digitised those years of the Reading Mercury, you can either wait in hope that they will, or get the section copied from the original.
If you follow the link in the previous post, you will be able to see what to do. You can order a copy (won't be very cheap) of the relevant article or page, or go to the library yourself to read it. The Newspaper Libray is in Colindale and is an amazing experience!
Reading Central Library also have this newspaper on microfilm.