ORERs on Google Books
The rest of you probably already know this but I didn't. Just this morning I discovered that instead of downloading 6 ORERs from Google Books I downloaded many more.
The March 1901 ORER file turns out to contain April and May 1901 as well.
The September 1901 ORER file turns out to contain October and November 1901, too.
September 1903 remains unchecked.
July 1904 also contains July 1905.
February 1913 and June 1917 still need to be checked.
If anyone has found any other ORERs on Google Books I, for one, would like to know about it.