thread238-60515 I've recently come across a website while searching for the subject book on Yahoo search. It looks like you can download the 4th edition, 1964, in pdf format. The approximate size is 96Mb. You will be asked to provide an email acct, create a username and password to gain access to the downloadable file. I hope this helps the thousands of EEs unfortunate to have not been handed down this book from predecessors.