But that evening, when my fountain pen still hadn’t turned up, we all assumed it had been burned, especially because celluloid is highly inflammable.
There are no more uses of "inflammable" in the book.
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Not even the warning words in that day’s Chicago Tribune drew much attention: "For days past alarm has followed alarm, but the comparatively trifling losses have familiarized us to the pealing of the Courthouse bell, and we [have] forgotten that the absence of rain for three weeks [has] left everything in so dry and inflammable a condition that a spark might set a fire which would sweep from end to end of the city."
Jim Murphy -- The Great Fire
"You spoke to me of inflammable material," said he, "but you said nothing about firing it."