histone preparation

[steinhof at ???.Uni-Marburg.DE]

Could anyone give me information about a simple procedure for the isolation of 
histones from DNA of the hypotrichous ciliate Euplotes crassus?
I´ve treid it with a hydroxylapatite coloumn, but this did not work very well.
You can post your answer in this newsgroup or send an e-mail to:
steinhof at mailer.uni-marburg.de
Thanks a lot for your help

Dirk