Sentence:  She look'd as if she would devour me with her eyes, staring at me from head to foot, without the least regard to the confusion and blushes her eyeing me so <WSD>fixedly</WSD> put me to, and which were to her, no doubt, the strongest recommendation and marks of my being fit for her purpose. 
Meaning of the word marked with <WSD> tags:  In a fixed manner: steadily, without shifting one's gaze.