Sentence:  Every few <WSD>minutes</WSD> she would awaken for a moment to review things : Stowey , yes , was on his way south , and the two boys were away in school , and nothing was burning on the stove , and Lucretia was coming for dinner and bringing three guests of hers . 
Meaning of the word marked with <WSD> tags:  a unit of time equal to 60 seconds or 1/60th of an hour