Ireland merits around 135 TDs
Madam -- Daniel McCarron (Letters, Sunday Independent, July 1, 2012) proposes that fewer than 60 TDs would be the right number for the Dail, based on "international standards".
In fact, there is no general standard. Large countries, such as the UK, France and Germany, get along with around 10 members per million population, while smaller countries -- Denmark, Finland, Belgium -- have around 30 per million. On this basis, Ireland appears to rate about 135 TDs.