g..................k
-------------------h
j..................ch
l------------------
m------------------
n------------------
r------------------
th.................th
(in _thine_) (in _thin_)
v..................f
w------------------
y------------------
z (in _zone_)......s
z (in _azure_).....sh

The consonants in column 1 represent the sounds made by the obstructed
voice; those in column 2, except _h_ (which represents a mere forcible
breathing), represent those made by the obstructed breath.

The letters are mostly in pairs. Now note that the tongue, teeth, lips, and
palate are placed in the same relative position to make the sounds of both
letters in any pair. The difference in the sounds of the letters of any
pair is simply this: there is voice in the sounds of the letters in column
1, and only whisper in those of column 2. Give the sound of any letter in
column 1, as _b, g, v_, and the last or vanishing part of it is the sound
of the other letter of the pair.

TO THE TEACHER.--Write these letters on the board, as above, and drill the
pupils on the sounds till they can see and make these distinctions. Drill
them on the vowels also.