Here's my 'stack' of 'Mountaineering: Freedom of the Hills'. I am only missing the fifth edition. I have two copies of the second edition because the first time I thought I was buying a first edition it was actually the second edition (they used a stock image of the first edition for the photo!). It appears we are now on the Ninth Edition so I'll have to pick that one up as well to keep my collection current.
If you happen to come across a copy of the fifth edition I'll trade you a second edition for it!