Australian English (Aus.E.) is a "non-rhotic" (no syllable-final /r/) dialect of English and is very similar at a phonological level to South Eastern Urban British English. The main differences between these two dialects (at least as far as vowels are concerned) are in the areas of phoneme realisation and phoneme selection. In other words, the vowel phoneme repertoire is more or less identical but speakers of Australian English and British English pronounce them differently and sometimes choose to select different phonemes when pronouncing the same words. Australian English has traditionally been described (Mitchell, 1946; Mitchell & Delbridge, 1965) as consisting of a continuum of varieties: "Cultivated", "General", and "Broad". The Broad end of the continuum is the most marked Australian form whilst the Cultivated end of the continuum tends towards the British English Received Pronunciation (RP) form (although Bernard (1970) claims it is nevertheless quite distinctly Australian). About 2/3 of the Australian population speak the General variety. Like British English, Aus.E. consists of 11 monophthongs (ignoring schwa) and 5 closing diphthongs (see table 1, below). Both dialects, being non-rhotic, have a set of centring diphthongs (replacing /Vr/ sequences in rhotic dialects).