Sentence:  … to send him some <WSD>paccan nuts</WSD>. … Jefferson in his reply wrote: "The <WSD>Paccan</WSD> nut is, as you conjecture the Illinois nut, ..., and enters into the Botanical name with is Juglans <WSD>Paccan</WSD>" 
Meaning of the word marked with <WSD> tags:  (nodot=1) (nut).