if you haven't read Mark Dunn's entry in the Dictionary about Henri L'Estrange, balloonist, tightrope artists and bungler, you've missed out. As a packed room found out last night during Library Up Late at Customs House Library, you've missed even more if you haven't heard Mark speak about Henri -- it's where history meets standup comedy. You've got another chance to catch up with Henri's adventures with ropes, gas, sandbags and restive crowds, on Wednesday 4 April, when Mark is speaking at the Royal Australian Historical Society, at 1 pm. Book on 9247 8001, or email history@rahs.org.au