diff --git a/src/servo/layout/box_builder.rs b/src/servo/layout/box_builder.rs
index 5a39b2ed532..ecf75ba1308 100644
--- a/src/servo/layout/box_builder.rs
+++ b/src/servo/layout/box_builder.rs
@@ -91,14 +91,14 @@ impl LayoutTreeBuilder {
 
         // if this is a new flow, attach to parent flow and make a new BuilderContext.
         if !core::box::ptr_eq(next_flow, parent_ctx.flow) {
-            debug!("using parent builder context");
-            debug!("Adding child flow f%? of f%?",
+            debug!("LayoutTreeBuilder: using parent builder context");
+            debug!("LayoutTreeBuilder: Adding child flow f%? of f%?",
                    parent_ctx.flow.d().id, next_flow.d().id);
             FlowTree.add_child(parent_ctx.flow, next_flow);
 
             builder_ctx = { flow: next_flow, consumer: BoxConsumer(next_flow) };
         } else {
-            debug!("creating fresh  builder context");
+            debug!("LayoutTreeBuilder: creating fresh builder context");
             builder_ctx = copy *parent_ctx;
         }
 
@@ -110,7 +110,7 @@ impl LayoutTreeBuilder {
         do cur_node.aux |data| { data.flow = Some(builder_ctx.flow) }
 
         let new_box = self.make_box(layout_ctx, box_type, cur_node, builder_ctx.flow);
-        debug!("Assign ^box to flow: %?", builder_ctx.flow.debug_str());
+        debug!("LayoutTreeBuilder: Assign ^box to flow f%d", builder_ctx.flow.d().id);
         builder_ctx.consumer.push_box(layout_ctx, new_box);
 
         // recurse on child nodes.
@@ -193,7 +193,7 @@ impl LayoutTreeBuilder {
             Flow_Root        => @RootFlow(data, RootFlowData()),
             Flow_Table       => @TableFlow(data)
         };
-        debug!("Created context: %s", ret.debug_str());
+        debug!("LayoutTreeBuilder: created flow: %s", ret.debug_str());
         ret
     }
 
@@ -207,7 +207,7 @@ impl LayoutTreeBuilder {
             RenderBox_Text    => self.make_text_box(layout_ctx, node, ctx),
             RenderBox_Image   => self.make_image_box(layout_ctx, node, ctx),
         };
-        debug!("Created box: %s", ret.debug_str());
+        debug!("LayoutTreeBuilder: created box: %s", ret.debug_str());
         ret
     }
 
diff --git a/src/servo/layout/flow.rs b/src/servo/layout/flow.rs
index a9ab7484e42..405714f8c79 100644
--- a/src/servo/layout/flow.rs
+++ b/src/servo/layout/flow.rs
@@ -379,6 +379,6 @@ impl FlowContext : BoxedDebugMethods {
             _ => ~"(Unknown flow)"
         };
             
-        fmt!("c%? %?", self.d().id, repr)
+        fmt!("f%? %?", self.d().id, repr)
     }
 }
diff --git a/src/servo/layout/inline.rs b/src/servo/layout/inline.rs
index 0dd4aa63198..3c1c05cb08a 100644
--- a/src/servo/layout/inline.rs
+++ b/src/servo/layout/inline.rs
@@ -222,18 +222,14 @@ impl FlowContext : InlineLayout {
     fn bubble_widths_inline(@self, ctx: &LayoutContext) {
         assert self.starts_inline_flow();
 
-        debug!("box count: %u", self.inline().boxes.len());
-
         let scanner = TextRunScanner(self);
         scanner.scan_for_runs(ctx);
 
         let mut min_width = au(0);
         let mut pref_width = au(0);
 
-        debug!("/box count: %u", self.inline().boxes.len());
-
         for self.inline().boxes.each |box| {
-            debug!("measuring box: %s", box.debug_str());
+            debug!("FlowContext[%d]: measuring %s", self.d().id, box.debug_str());
             min_width = au::max(min_width, box.get_min_width(ctx));
             pref_width = au::max(pref_width, box.get_pref_width(ctx));
         }
@@ -315,11 +311,12 @@ impl FlowContext : InlineLayout {
         assert self.starts_inline_flow();
 
         // TODO: if the CSS box introducing this inline context is *not* anonymous,
-        // we need to draw it too, in a way similar to BlowFlowContext
+        // we need to draw it too, in a way similar to BlockFlowContext
 
         // TODO: once we form line boxes and have their cached bounds, we can be 
         // smarter and not recurse on a line if nothing in it can intersect dirty
-        debug!("building display list for %u inline boxes", self.inline().boxes.len());
+        debug!("FlowContext[%d]: building display list for %u inline boxes",
+               self.d().id, self.inline().boxes.len());
         for self.inline().boxes.each |box| {
             box.build_display_list(builder, dirty, offset, list)
         }
diff --git a/src/servo/text/text_run.rs b/src/servo/text/text_run.rs
index 0caaa7873f8..86e39ca491f 100644
--- a/src/servo/text/text_run.rs
+++ b/src/servo/text/text_run.rs
@@ -26,8 +26,6 @@ impl TextRun {
         assert offset < self.text.len();
         assert offset + length <= self.text.len();
 
-        debug!("enter min_width_for_range(o=%?, l=%?)", offset, length);
-
         let mut max_piece_width = au(0);
         // TODO: use a real font reference
         let font = ctx.font_cache.get_test_font();
@@ -38,7 +36,6 @@ impl TextRun {
             }
         };
 
-        debug!("exit min_width_for_range(o=%?, l=%?)", offset, length);
         return max_piece_width;
     }
 
@@ -78,8 +75,6 @@ impl TextRun {
         assert offset < self.text.len();
         assert offset + length <= self.text.len();
 
-        debug!("enter iter_indivisible_pieces_for_range(o=%?, l=%?)", offset, length);
-
         //TODO: need a more sophisticated model of words and possible breaks
         let text = str::view(self.text, offset, length);
 
@@ -122,7 +117,6 @@ impl TextRun {
                 }
             }
         }
-        debug!("exit iter_indivisible_pieces_for_range(o=%?, l=%?)", offset, length);
     }
 }