Sentence:  Even then , as you go into the house oppressed by the knowledge that something is cooking and that your house has passed under this unaccountable , official control , could you go on forgetting that you still had that ridiculous hat on your head and you were still carrying that childish horn in your <WSD>hand</WSD> ? 
Meaning of the word marked with <WSD> tags:  the (prehensile) extremity of the superior limb