A metaphor is a comparison of two unlike objects NOT using the words like or as. Although they are frequent, they are not on every page. Here are some.
1. Pg 3: " With the brass nozzle in his fists, with this great python spitting its venomous kerosene upone the world, the blood pounded in his head, ....."
This compares the brass nozzle to a great python snake.
2. pg. 17: "But instead he stood there, very cold, his face a mask of ice....."
This compares his face to a mask of ice.
3. pg 27: "Beatty snorted gently, "Hell! It's a fine bit of craftmanship, a good rifle that can fetch its own target and guarantees the bull's-eye every time."
This compares the Hound to a good rifle.
Here are some extras:
4. pg 58: A book is a loaded gun in the house next door."
This compares a book to a loaded gun.
5. pg 90: I'm the Queen Bee, safe in the hive. You will be the drone, the traveling ear."
This is an interesting sentence because a number of metaphors are located in this one sentence. . Faber is the Queen Bee, the hive is his home, Montag is the drone, the drone is an ear.
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