1038. Afterwards, its vital essences follow, which cannot, I suppose, be agitated in this way before the initiament of those gyres, which are their embodiments.
1038 1/2. A comparison can be drawn of the gyres with the [movement of] the blood cells, so that it may be clear what they are like. For cells that do not rightly fit in are hard, generally differing from the rest in shape, in size, as well as in weight, hardness, and heat. Therefore, because new blood is constantly being formed, all the globules that do not harmonize with the better blood are cast out. 1748, 26 February.