 In 1891 , O. P. Caylor in Outing magazine examined " The Theory and Introduction of Curve Pitching " and noted that many " ignorant ball players " had believed that Getzein was capable of throwing a " double curve . " Caylor deemed the " double curve " to be " an ocular delusion " , but claimed that Getzein 's nickname was based on the delusion : " [ W ] e have the nickname of ' the Pretzel Pitcher , ' given to Getzein by players who imagine the curve from his hands comes at them with the curves of a pretzel . " 
