via Old Irish net

I just came across 3 important works of Old Irish grammatical
scholarship that have been placed online. I'm not sure if people are
aware of them, so I thought I'd send the links to the list.

1) O Maille's 'contributions to the history of the verbs of
existence in Irish' (1911)
http://www.archive.org/details/contributionstoh00mrich

2) Strachan's 'substantive verb in the glosses' (1899)
http://www.archive.org/details/transact189900philuoft

while rather old, these two do have a lot of interesting things about
the development and usage of the substantive verb and the copula from
Old Irish to Modern Irish.