There comes a point of blogging and trawling the internet where I'm not sure if I'm repeating myself...Have I said this before? Do I know this already? I'm not sure...I'll blame it on the painkillers.
Anyway, if I didn't already know this and haven't already posted this, then hurrah! Volume IV of the Carmina Gadelica is online:
It takes a while to load but the formatting is good. Volumes 1-3 are also listed there.