Note 51 — Chapter IV · HERMETIC MAGIC
Arthur Edward Waite translation
It may be mentioned that the Hebrew alphabet was divided into (a) Three Mother Letters, namely, Aleph, Mem and Shin; (b) Seven Double Letters, being Beth, Gimel, Daleth, Kaph, Pe, Resh, Tau; and (c) Twelve Simple Letters, or He, Vau, Zain, Heth, Teth, Yod, Lamed, Nun, Samech, Ayin, Tsade, Quoph.