If the modus operandi was akin to soothsaying it was only because that special form of soothsaying was peculiar to the particular cult of that god, and even this as a secondary development.
The modus operandi is to turn the plant out of its pot, shake away the soil so as to free the roots, and then select as many pieces of the stouter roots as may be required.
The modus operandi is briefly as follows: The position of the fracture is determined by electrical tests from both ends, with more or less accuracy, depending on the nature of the fracture, but with a probable error not exceeding a few miles.
The physical investigation of osmotic pressure, and its correlation by Van't Hoff with the pressure of a gas, brought forward a new aspect of the phenomena, and suggested an identity of physical modus operandi as well as of numerical value.
Clear indications of a primitive magical modus operandi appear as survivals in the narratives of the pre-exilian prophets.