diff --git a/collects/mrlib/scribblings/switchable-button.scrbl b/collects/mrlib/scribblings/switchable-button.scrbl
index da89b4e2..d999d4df 100644
--- a/collects/mrlib/scribblings/switchable-button.scrbl
+++ b/collects/mrlib/scribblings/switchable-button.scrbl
@@ -15,7 +15,7 @@
   The @racket[panel:discrete-sizes-mixin] explicitly
   uses @racket[switchable-button%]s via their
   @method[switchable-button% get-small-width] and
-  @method[switchable-button% get-small-height] methods.
+  @method[switchable-button% get-large-width] methods.
   See @racket[panel:discrete-sizes-mixin] for more details.
   
   @defconstructor/auto-super[([label (or/c string? (is-a?/c bitmap%) #f)]
diff --git a/collects/scribblings/framework/panel.scrbl b/collects/scribblings/framework/panel.scrbl
index aad7df0a..c416487d 100644
--- a/collects/scribblings/framework/panel.scrbl
+++ b/collects/scribblings/framework/panel.scrbl
@@ -273,4 +273,11 @@
    It uses the sizes of its children to implement the @racket[panel:discrete-child<%>] interface.
 }
 
+@defclass[panel:horizontal-discrete-sizes% (panel:discrete-sizes-mixin panel%) ()]{}
+@defclass[panel:vertical-discrete-sizes% (panel:discrete-sizes-mixin panel%) ()]{
+  Calls @racket[panel:discrete-sizes<%> set-orientation] with @racket[#f] during
+        initialization.
+}
+
+
 @(include-previously-extracted "main-extracts.rkt" #rx"^panel:")