@node Immediate objects
@subsubsection Immediate objects
-A Scheme object may either be an immediate, i.e. carrying all necessary
+A Scheme object may either be an immediate, i.e.@: carrying all necessary
information by itself, or it may contain a reference to a @dfn{cell}
with additional information on the heap. Although in general it should
be irrelevant for user code whether an object is an immediate or not,
@end deftypefn
@deftypefn Macro SCM SCM_UNSPECIFIED
-The value returned by expressions which the Scheme standard says return
-an ``unspecified'' value.
+The value returned by some (but not all) expressions that the Scheme
+standard says return an ``unspecified'' value.
This is sort of a weirdly literal way to take things, but the standard
read-eval-print loop prints nothing when the expression returns this