Sentence:  One minute before his death, as we were crossing from his <WSD>demesne</WSD> to mine and had begun working up between the junipers and ornamental shrubs, a Red Admirable (see note to line 270) came dizzily whirling around us like a colored flame. 
Meaning of the word marked with <WSD> tags:  A lord's chief manor place, with that part of the lands belonging thereto which has not been granted out in tenancy; a house, and the land adjoining, kept for the proprietor's own use.