Dick, I usually respond to requests I am seriously interested in by asking them to tell me what they know, and I will see what I can add. That way the impetus is on them, and you should wait for the response. It is like a handshake, saying "I have what you want, and I will deal with you equally." If however I can answer a prcific question I will do as you have in the past, answer the specific queston, and ask for additional details. The email process IS about exchange, whether it is data or just being friendly. Serious researchers wil want tocommunicare and verify ources and get the fine details, and others will "gather" data without adding ack to the pol of community knowledge. Some may not have anything to add. That's OK, they can put in the future, and pass along the data when they do have it. When someone makes a PROMISE to send data, they should have the integrity to DO t, and if they find they cannot, they should indicate that to the expectant recipient. COURTESY is contageous, as my mother told me. On a longer note if I hve data in my files on lines I a not concentrationg on, I will "just send it," noting where I got it and indicating that I am not expanding that line. I have found many times that someone has gone to great efforts to prepare a report or cmpile data and send it back to e, when in reality it is "unrelated" to my research goals. It is discourteous of me to imply I am actively seeking a line when it is just coincidental to my data goal.If someone does do a lot of work, and I don't expect or need the data, I feel badly about it. Jeff (Looking for ANY and all Peffley, Peffly, Pefley Family connections)