2. The hollow P. _Kong_, which announces that the artery is empty when
pressed upon.
3. The slippery P. _Hang_, which slides under the fingers, like the beads
of a necklace.
4. The full P. _Che_, striking against the fingers with a full caliber of
blood.
5. The tremulous P. _Hien_, vibrating like the chord of a musical
instrument.
6. The intermittent P. _Kin_, vibrating by starts, like the instrument
called _Kin_.
7. The regurgitating P. _Hong_, the strong pulsation of a full and
distended vessel.
These seven characters are considered much more favourable than the eight
which follow, and which, arising from a deeper action, require a more
forcible pressure.