Those letters whose sounds are modified by the lips.

85. _Name them._
B, F, M, P, V, W, and Wh.

86. _What are Dentals?_
Those letters whose sounds are modified by the teeth.

87. _Name them._
J, S, Z, Ch, Sh, Zh, C and G soft.

88. _What are Linguals?_
Those letters whose sounds are modified by the tongue.

89. _Name them._
D, L, N, R, T, Y, and Th.

90. _What are Palatals?_
Those letters whose sounds are modified by the palate.

91. _Name them._
K, Q, X, Ng, C and G hard.

92. _What letters have no Organical classification?_
H, and all the vowels.

93. _What is an Aphthong?_
A silent letter or combination.

94. _How many kinds of Aphthongs?_