Grimoire Encyclopædia

From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:

Sow to Discern what ails the Cattle.

Look sharp into the animal's eyes. If the lower streak in the eye is dim and dark, the cow is dropsical. If the two middle veins are dull and dim, then it has the rot. But if the hinder-wart vein appears dim, then the animal is bilious. If they are all pure and red, then the beast is healthy and noth­ing ails it.