Published online by Cambridge University Press: 24 August 2009
* This was widely remedied on the actual occasion (in Ottawa, Canada—see the Conferences & Meetings section of this issue)following wide circulation of a draft and then proof of this note, but still persisted with some speakers thirteen days later in Lausanne, Switzerland, in the pertinent part of the International Astronautical Federation's first international symposium on ‘Global Habitability: The Biosphere’, though it is gratifying to note the now-widespread use of this last term.