As always I'll share tips with the community in the manual in a section that credits you. Here are the patterns I'm looking for: *Annals of internal medicine* Has 24 issues per year (published 2 times a month) with the volume changing (rolling over) in the 1st week of July Vol 161, No 2 July 15, 2014 Vol 161, No 1 July 1, 2014 Vol 160, No 12 June 17, 2014 Vol 160, No 11 June 3, 2014 *Scientific American* Has 12 issues per year (published once a month) with volume rolling over in the middle of the year, July Vol 311, issue 2, August, 2014 Vol 311, issue 1, July 2014 Vol 310, issue 6, June 2014 Vol 310, issue 5, May 2014 *Time Magazine* It's published weekly, with the volume rolling over at the first week of July Vol 184, No 3 July 21, 2014 Vol 184, No 2 July 14, 2014 Vol 184, No 1 7/7/14 Vol 183, No 25 6/30/14 Vol 183, No 24 6/23/14 Thank you so very very much in advance! Nicole