Nice.  That causes Squeak 5.0 to unexpectedly quit.
<br/><br/>But when I start again, there are no instances of Books.
<br/><br/>Sincerely,
<br/><br/>Joseph
<br/><br/><br/><br/>&gt; On Sep 23, 2016, at 7:59 AM, Louis LaBrunda [via Smalltalk] &lt;<a href="/user/SendEmail.jtp?type=node&node=4916813&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a>&gt; wrote:
<br/>&gt; 
<br/>&gt; Books allInstances do: [:b | b become: nil]. 
<br/><br/>

	
	
	
<br/><hr align="left" width="300" />
View this message in context: <a href="http://forum.world.st/remove-allInstances-tp4916693p4916813.html">Re: remove allInstances?</a><br/>
Sent from the <a href="http://forum.world.st/Squeak-Beginners-f107673.html">Squeak - Beginners mailing list archive</a> at Nabble.com.<br/>