1166a

Buck is a thief who has a real gem, XI, which he believes is a fake * 
Buck, a thief,
has a real gem, X1, which he believes is a fake; and, expertly, he substitutes X1 for X2, a fake which Buck believes is a genuine stone **
(1166a
1129a 1144
614 1166b
Category:Buck loses something dear to him by his own folly or actions.