Hello !
I've got a comprehension problem with a passage from Hemingway's "The old man and the sea" :
"They had gone one day and one night with their elbows on a chalk line on the table and their forearms straight up and their hands gripped tight. Each one was trying to force the other's hand down onto the table [...] They changed the referees every four hours after the first eight so that the referees could sleep." (p. 51 sq.)
What is the meaning of "the first eight" ? I've been looking in several dictionaries but couldn't find a sense that fits to "eight" as a noun here...