Sentence:  We knocked the head out of an empty <WSD>hogshead</WSD> and hoisted this <WSD>hogshead</WSD> to the flat roof of the chapel, where we clamped it down fast, poured in gunpowder till it lay loosely an inch deep on the bottom, then we stood up rockets in the <WSD>hogshead</WSD> as thick as they could loosely stand, all the different breeds of rockets there are; [...] 
Meaning of the word marked with <WSD> tags:  A large barrel or cask of indefinite contents, especially one containing from 100 to 140 gallons.