What page does Montag realize that all the firemen have brown hair and brown brows?

From the text:

They and their charcoal hair and soot-coloured brows and bluish-ash-smeared cheeks where they had shaven close; but their heritage showed. Montag started up, his mouth opened. Had he ever seen a fireman that didn't have black hair, black brows, a fiery face, and a blue-steel shaved but unshaved look? These men were all mirror-images of himself! Were all firemen picked then for their looks as well as their proclivities?

If you are using the Simon and Shucster version, this quote is found on pg 30 (in the middle of the big paragraph)

"black hair, black brows…fiery face, and…blue-steel shaved but unshaved look."