34. In each series

 In each series there are two surd members, two sonant, and one nasal (which is also a sonant): for example, in the labial series प् p and फ् ph, ब् b and भ् bh, and म् m.

a. The members are by the Hindu grammarians called respectively first, second, third, fourth, and last or fifth.

b. The surd consonants are known as aghoṣa toneless, and the sonants as ghoṣavant having tone; and the descriptions of the grammarians are in accordance with these terms. All alike recognize a difference of tone, and not in any manner a difference of force, whether of contact or of expulsion, as separating the two great classes in question. That the difference depends on vivāra opening or saṁvāra closure (of the glottis), is also recognized by them.