Just come across this excellent article on Alpinist.com, featuring a translation of Oscar Eckenstein's 1908 article on the future of ice climbing. I read this years ago (and it inspired my book in many ways) but had forgotten how visionary Eckenstein was for his era.
"What the ice climbers of the future will be able to climb, I know not. But I find it hard to believe that we have already reached the limits of what is possible."
In reply to Kevin Woods:
I think he was one of the first men to apply truly scientific methods to climbing equipment (apart from Beale and his Alpine rope). He was before his time in many ways; certainly up there with Chouinard and MacInnes.