Sentence:  Then he commenced to talk, really talk. and inside of two flaps of a herring's fin he had me mesmerized, like Eben Holt's boy at the town hall show. He talked about the ills of humanity, and the glories of health and Nature and <WSD>service</WSD> and land knows what all. 
Meaning of the word marked with <WSD> tags:  An act of being of assistance to someone.