diff --git a/collects/scribblings/reference/class.scrbl b/collects/scribblings/reference/class.scrbl
index 7616f4254f..a136b07a15 100644
--- a/collects/scribblings/reference/class.scrbl
+++ b/collects/scribblings/reference/class.scrbl
@@ -1117,8 +1117,8 @@ Returns an accessor procedure that takes an instance of the class
 produced by @scheme[class-expr] and returns the value of the object's
 field with (external) name @scheme[field-id].
 
-If @scheme[obj-expr] does not produce an object, the
-@exnraise[exn:fail:contract]. If the object has no @scheme[field-id]
+If @scheme[class-expr] does not produce a class, the
+@exnraise[exn:fail:contract]. If the class has no @scheme[field-id]
 field, the @exnraise[exn:fail:object].}
 
 @defform[(class-field-mutator class-expr field-id)]{
@@ -1128,8 +1128,8 @@ produced by @scheme[class-expr] and a value, and sets the value of the
 object's field with (external) name @scheme[field-id] to the given
 value. The result is @|void-const|.
 
-If @scheme[obj-expr] does not produce an object, the
-@exnraise[exn:fail:contract]. If the object has no @scheme[field-id]
+If @scheme[class-expr] does not produce a class, the
+@exnraise[exn:fail:contract]. If the class has no @scheme[field-id]
 field, the @exnraise[exn:fail:object].}
 
 @; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
diff --git a/collects/scribblings/reference/threads.scrbl b/collects/scribblings/reference/threads.scrbl
index 525096d828..7df71d536d 100644
--- a/collects/scribblings/reference/threads.scrbl
+++ b/collects/scribblings/reference/threads.scrbl
@@ -199,7 +199,9 @@ Returns a @tech{synchronizable event} (see @secref["sync"]) that is
 ready if and only if @scheme[thd] has terminated.  Unlike using
 @scheme[thd] directly, however, a reference to the event does not
 prevent @scheme[thd] from being garbage collected (see
-@secref["gc-model"]).}
+@secref["gc-model"]). For a given @scheme[thd],
+@scheme[thread-dead-evt] always returns the same (i.e., @scheme[eq?])
+result.}
 
 @defproc[(thread-resume-evt [thd thread?]) evt?]{