
pg 947, middle
---------------

'...Remarkably, the streambuf class has no idea...
...Derived classes such as filebuf and streambuf redefine the...'

Is this how you meant to say it?   Maybe 'filebuf and stringbuf'?


pg 953, top
-----------

class Bundle needs a closing semicolon


pg 959, middle
--------------

In the code, the parameter for Invoice::Print is an InvoiceFormatter, but
on the previous page you wrote the InvoicePrinter class, and that is the
one you use in the code (the files).
