This is a multi-part message in MIME format. ------=_NextPart_000_0004_01BE6333.92AC4D40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Technically speaking, primaries are numbered from the inner most one to = the outermost because in evolution its the outermost one that is lost, = hence our nine primary songbirds. I guess in a practical sense = numbering from the outside inward is easier when you are watching live = birds because you cannot easily tell which one is innnermost primary. =20 Secondaries by the way are numbered from the outermost one to the = innermost one. Hope this helps, Rick Paul Woodward ------=_NextPart_000_0004_01BE6333.92AC4D40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">