diff --git a/src/pkg/reflect/all_test.go b/src/pkg/reflect/all_test.go
index ac43b50..15c69c1 100644
--- a/src/pkg/reflect/all_test.go
+++ b/src/pkg/reflect/all_test.go
@@ -1327,8 +1327,8 @@
 	}
 }
 
-func TestDotDotDot(t *testing.T) {
-	// Test example from FuncType.DotDotDot documentation.
+func TestVariadic(t *testing.T) {
+	// Test example from Type documentation.
 	var f func(x int, y ...float64)
 	typ := TypeOf(f)
 	if typ.NumIn() == 2 && typ.In(0) == TypeOf(int(0)) {
diff --git a/src/pkg/reflect/type.go b/src/pkg/reflect/type.go
index 28d94eb..4c377e1 100644
--- a/src/pkg/reflect/type.go
+++ b/src/pkg/reflect/type.go
@@ -114,11 +114,11 @@
 	// is a "..." parameter.  If so, t.In(t.NumIn() - 1) returns the parameter's
 	// implicit actual type []T.
 	//
-	// For concreteness, if t represents func(x int, y ... float), then
+	// For concreteness, if t represents func(x int, y ... float64), then
 	//
 	//	t.NumIn() == 2
 	//	t.In(0) is the reflect.Type for "int"
-	//	t.In(1) is the reflect.Type for "[]float"
+	//	t.In(1) is the reflect.Type for "[]float64"
 	//	t.IsVariadic() == true
 	//
 	// IsVariadic panics if the type's Kind is not Func.
@@ -232,8 +232,8 @@
 
 // commonType is the common implementation of most values.
 // It is embedded in other, public struct types, but always
-// with a unique tag like "uint" or "float" so that the client cannot
-// convert from, say, *UintType to *FloatType.
+// with a unique tag like `reflect:"array"` or `reflect:"ptr"`
+// so that code cannot convert from, say, *arrayType to *ptrType.
 
 type commonType struct {
 	size       uintptr
@@ -977,8 +977,8 @@
 	}
 	rt.i = (*runtime.PtrType)(unsafe.Pointer(&rt.ptrType))
 
-	// initialize p using *byte's PtrType as a prototype.
-	// have to do assignment as PtrType, not runtime.PtrType,
+	// initialize p using *byte's ptrType as a prototype.
+	// have to do assignment as ptrType, not runtime.PtrType,
 	// in order to write to unexported fields.
 	p = &rt.ptrType
 	bp := (*ptrType)(unsafe.Pointer(unsafe.Typeof((*byte)(nil)).(*runtime.PtrType)))
diff --git a/src/pkg/unsafe/unsafe.go b/src/pkg/unsafe/unsafe.go
index 8507bed..a125706 100644
--- a/src/pkg/unsafe/unsafe.go
+++ b/src/pkg/unsafe/unsafe.go
@@ -47,7 +47,7 @@
 // empty interface value with contents the type and the value (not the pointer to
 // the value).  The typ is assumed to contain a pointer to a runtime type; the type
 // information in the interface{} is ignored, so that, for example, both
-// *reflect.StructType and *runtime.StructType can be passed for typ.
+// *reflect.structType and *runtime.StructType can be passed for typ.
 func Unreflect(typ interface{}, addr Pointer) (ret interface{})
 
 // New allocates and returns a pointer to memory for a new value of the given type.