Ashtangasamgraha 6.8

6.8

śvete kaṣāyaṃ tatsvādu kṛṣṇe tiktaṃ ca pāṇḍure |

nīle kaṣāyamadhuraṃ deśe lavaṇamūṣare ||

nīlapītāsitāḥ sparśoṣṇāḥ kṣiprasrāviṇyaḥ pittaraktam |

gauryaḥ snigdhāḥ sthirāḥ śītāḥ kaṇḍūmatyaḥ kapharaktam |

lakṣaṇasaṅkare saṃsargasannipātāraktam |

samā gūḍhāḥ snigdhā rohiṇyaḥ śuddharaktamiti ||

maraṇādapi pāpātmā gataḥ pāpatarāṃ daśām ||

sasaidhavaṃ phalāmlaṃ vā koṣṇaṃ dadyādvirecanam ||

mūrchayatyanilaṃ mārgaṃ ruṇaddhyagniṃ hinasti ca ||

In white soil it is astringent and sweet; in black, bitter; and in pale-yellow,

in blue soil astringent-sweet, and in saline soil salty.

[Veins that are] blue, yellow, and black, hot to the touch, and quick to bleed are pittaraktam.

Those that are pale, unctuous, firm, cold, and itchy are kapharaktam.

In a mixture of symptoms, they indicate dual or combined-doṣa blood.

Those that are even, deep-seated, unctuous, and red are pure blood.

The wicked-minded person has reached a state worse even than death.

One should administer a lukewarm purgative with rock salt or sour fruits.

It causes vāta to swoon, blocks the channels, and destroys the digestive fire.