the history books, as well, J SMITH. They provide good info. Then you wrote: "I also asked you for the citation(s) used by Plimer for that graph of ice data and you have given me two now, the latter one not a direct link but, rather, a website which is rather partisan. Are you suggesting that both links are given as citation for that graph? Can't you just type out exactly what the citation is as it is shown in the book ?" I have not seen a citation by Plimer for his graph (have you?), but I gave you the NSIDC source of the raw data on Arctic and Antarctic sea ice extent. I also gave you a link to a site that had drawn this data up as a graph. Check it out for yourself. Some general advice: Try not to act too obstinate or impertinent in our discussion. It will not get you anywhere. I am sure your Mommy told you that it is better to be polite with people. Max J SMITH manacker wrote : "I have not seen a citation by Plimer for his graph (have you?), but I gave you the NSIDC source of the raw data on Arctic and Antarctic sea ice extent. I also gave you a link to a site that had drawn this data up as a graph. Check it out for yourself." Oh I have certainly checked all this out for myself : you don't think I would just