The Chairman: In answer to Professor Smith's question I will start from his premises and remark that we do have such complexities. The hickories are so crossed at the present time, like our apples, that even crossing the pollen of various hickory trees of any one species does not promise interesting results unless we cross an enormous number. They are already so widely crossed that it is very difficult sometimes to determine if a certain tree is shagbark or pignut or shellbark or mockernut. For the most part the various species and varieties of hickories retain their identity because their own pollen is handiest, and different species do not all flower at the same time. Their own pollen from the male flowers is apt to fall at the time when their own female flowers are ripe and under these circumstances the chances are very much in favor of the tree pollinizing its female flowers with its own pollen. On the other hand, there is hardly one chance in many hundred thousand for any crossed nut to grow, for the reason that most nuts are destroyed by mice, squirrels, rats and boys. If you have a hickory nut tree growing in a lot, and which has produced a bushel of hickory nuts year after year, do you know of one single nut from that tree which has grown? In this plan of Nature, this plan of enormous waste of Nature in order to get one seed to grow, the chance for a hybridized hickory nut to grow under normal conditions, is so small that we should have relatively few crossed trees growing wild in Nature, though we do find quite a good many of them. Professor Smith: If I am not taking up too much time, I would like to put some more questions to you. The Chairman: That's what we are here for. Professor Smith: Have you ever tried the plan of serving collations to squirrels? Why wouldn't it pay to give them portions of wheat and corn? Second, what percentage of the oak pollen kept in cold storage a month was alive? Third, what is the range of time that the hybridizer has to make the pollinization? Must we go on the dot or have we two days or four days or a week, in the case of hickories and walnuts? The Chairman: I think possibly as these are three direct questions, I might answer them now. No, I think it would be better to have all questions bearing on this subject brought out and then I will answer all together. So if you will kindly ask all the questions, I will then endeavor to answer them.