Some copies of the documentation of
epsf.tex seemed once to
suggest that the command
is needed for every figure included. If you follow this suggestion too literally, you get an error
! No room for a new \read .
after a while; this is because each time
epsf.tex is loaded, it
allocates itself a new file-reading handle to check the figure
for its bounding box, and there just aren't enough of these things
(see no room for a new thing).
The solution is simple - this is in fact an example of misuse of
macros; one only need read
epsf.tex once, so change
(and so on) with a single
somewhere near the start of your document, and then decorate your
\epsffile statements with no more than adjustments of
\epsfxsize and so on.