184. Medulla: i.e. marrow; the best of all marrows is that of deer and calf, then the marrow of the bull, then that of goat, and after that the marrow of sheep; these marrows all have a softening effect; if they are not digested, they will reduce the appetite and trouble the stomach; according to Avicenna, they should not be eaten except with pepper, because, according to Ysaac, if they are eaten without pepper they will give rise to an aversion in the throat.