SECT. III.—ON THE MILK OF THE NURSE.
The best milk is that which is moderate in thickness, quantity, colour, smell, and taste. It is a proper way to try the quality of the milk, by pouring a little of it upon the nail of the thumb and observing it in the sun; for, when upon turning the nail, it neither runs off too slowly nor too quickly, it is good milk. You may also try it thus: by pouring some milk into a glass vessel, and putting some runnet into it, then squeezing them together with your fingers, allow it to coagulate, and observe whether the cheesy part be less than the serous; for such milk is unsuitable, and also the opposite kind is of difficult digestion. The best kind is that which has a moderate proportion of each.
Commentary. This Section is taken from Oribasius (Synops. v, 3), and Aëtius (iv, 3.)
The method of trying the quality of the milk here recommended is mentioned by Aëtius, Barytus (ap. Geopon. xviii, 20), Dioscorides, Avicenna, Haly Abbas, and Alsaharavius. According to Avicenna, a child ought not to be allowed to take suck oftener than twice or thrice in the day. See, in particular, Haly Abbas (Pract. i, 21), and Alsaharavius (Pract. xxx, 3.)