Final answer:
Vernon Ingram showed defiance and courage against Tull in the novel 'Riders of the Purple Sage' by Zane Grey.
Step-by-step explanation:
Vernon Ingram is a character from the novel Riders of the Purple Sage by Zane Grey. In the given excerpt, it is not clear what Vernon Ingram showed. However, based on the description, it seems that he showed defiance and courage.
His bound arms rippling and the blue flame of defiance in his gaze suggest that he is demonstrating strength and resistance against Tull, the antagonist. This display of defiance may be significant in highlighting the conflict between Vernon Ingram and Tull.
Overall, without more context, it is difficult to determine the specific action or object that Vernon Ingram showed, but his display of defiance and courage is evident in this passage.