tacks under the horse's collar to cause it to behave irrationally. This would be unknown to the potential candidate as the techniques for training and controlling the horses were not yet given to him. Most of these techniques were based on the horse's sharp sense of smell. Foul substances placed in front of the horse or on the animal itself would cause it to refuse to move forward. This technique is known as jading and is still used by horse trainers today. There were also pleasant smelling things that were used to make a horse move forward or calm down. If the substance was an oil it could be wiped on the trainer's forehead, they would then stand in front of the animal and the smell would draw it towards them. This practice was often used in taming unruly horses. There were also pleasant smelling and inviting materials, such as sweets, that the horseman could keep in their pocket in order to calm, attract, and subdue a crazed horse. Keeping these techniques secret, along with the myth that there was a word that only the horseman knew that gave them and them alone power over horses helped guarantee their reputation, prestige, job security, and pay. The same type of logic and protection of trade secrets can be seen among modern magicians who keep their tricks secret and only share them with other members of their trade. One critic of the Society, a ploughman who later became a grocer and published a book entitled Eleven Years at Farm Work; being a true tale of farm servant life (1879), claimed that "Without betraying any secret, it may be said the real philosophy of the horseman's word, consists in the thorough, careful, and kind treatment of the animals, combined with a reasonable amount of knowledge of their anatomical and physiological structure." Legacy Historical study In the twentieth century, a number of scholars began to study the history and origins of the Society. The first of these, J.M. McPherson, published his findings and theories in his Primitive Beliefs in the North-East of Scotland (1929), in which he outlined the idea that it was a survival of an ancient pagan cult that had been persecuted in the witch trials in the Early Modern period. Such ideas were supported by the folklorist Thomas Davidson in an article of his published on the subject of the Horseman's