[O] disable tangling for an entire section?

[Bill White]

Is there a simple way to disable tangling for an entire section's code
blocks?  Or to put it a different way, can tangling be toggled at the
section level and not just the code-block level?

I tried this:

** a section in my file
:PROPERTIES:
:tangle: no
:END:

by analogy from 
   #+PROPERTY: tangle yes
in (info "(org) Header arguments in Org mode properties"), but code
blocks in that section were still tangled.

Org-mode version 8.0.2 (release_8.0.2-61-g22dfa7 @ 
/home/billw/Dropbox/org/org-mode/lisp/)
GNU Emacs 24.3.1 (i686-pc-linux-gnu, GTK+ Version 3.6.0) of 2013-03-11 on wri

Thanks -

bw
-- 
Bill White . address@hidden
"No ma'am, we're musicians."