Download the original pdf for yourself – it is only 14 pages and very readable – Dr Long is ex NASA.
This study looks at NCDC raw and adjusted temperature trends and finds that rural data has been adjusted warmer to meet urban trends. It would be great if somebody had the time to check what Jones/UKMO has for Dr Long’s stations (which he lists). I predict now Jones/UKMO will treat them quite differently.
Remember, four years back I showed that GISS was doing something similar – read Dr Jim Hansen’s email.