> The lack of a monospaced font is, I suspect, due either to
> physical limitations of the C/A/T phototypesetter[1] or fiscal
> limitations--no budget in that department to buy photographic
> plates for Courier. 

Since the C/A/T held only four fonts, there was no room for
Courier. But when we moved beyond that typesetter, inertia
kept the old ways . Finally, in v9, I introduced the fixed-width
"literal font", L, in -man and said goodbye to boldface in
synopses. By then, though, Research Unix  was merely a
local branch of the Unix evolutionary tree, so the literal-font
gene never spread.

Doug