Now I might add one thing that is quite important as to why [Walter] Rothschild wanted me to go out there and what instructions he had given me. In the years prior to 1924 the most... most flourishing trade of New Guinea was birds-of-paradise skins because the ladies from the 1880s on had always... many of them had bird feathers on their hats, and particularly birds-of-paradise feathers were considered to be the most wonderful hats. And so something like 4000 or 6000 skins of birds-of-paradise arrived in Paris and Rotterdam every year for the – in the so-called plume trade – for the people who made hats. And every once in a while there was some unique specimen among these... these things, some which Lord Rothschild had left orders with these plume dealers that if there was ever such a unique specimen he would pay £100 for it, and then it came to in his hands and then he decided very often that it was a new species and described it as a new species. Now the problem was that since that time any number of expeditions had gone to various parts of New Guinea and had never been able to find the actual home of these rare species of birds-of-paradise. And I was instructed to go to three mountain ranges: the Arfak Mountains, the Wandamen Mountains and the Cyclops Mountains, of which the latter two had never been visited by an ornithologist, and see if I could find there the home of these rare species of birds-of-paradise. Well, in the Arfak Mountains, the first one I went to, I got a fine collection together but not one of the rare species. Then I went to the other two mountain ranges, again got fine collections, several new species of birds, many new subspecies of birds, but still not the home of any of these rare species of birds-of-paradise. This, what you might call, failure of mine resulted in Professor [Erwin] Stresemann saying, 'There must be something funny about these species because otherwise somebody... these... these were about the last places where they could have been, and now that they are eliminated, where... where should they come from?' So he made a very detailed study of these birds and he discovered that all of them were the hybrids between two other different species of birds-of-paradise so that even though I failed to find their home I was instrumental in solving the problem of the rare, unique species of birds-of-paradise.