Planet Open Knowledge 
The Expositor, or Many Mysteries Unravelled – including that of the Learned Pig (1805)
Adam Green - August 19, 2014 in animals, domesticated animals, illusion, learned pig, magic, pig of knowledge, pinchbeck, sapient pig, tricks
A wonderful book amounting to something akin to an early 19th-century version of the Masked Magician, in which the reality behind various tricks and illusions of the day are exposed, including that of the Learned Pig.