immediately? I have had pollen sent to me from a distance in tightly corked bottles. It was probably ruined at the end of three or four days, because it could not breathe. Every grain of pollen has to breathe just as surely as a red squirrel in the top of a tree has to breathe. The pollen grain is a living organism, and if it is sent in a closely corked bottle it smothers and dies. You must have it sent in paper or wooden boxes in order to have it in good condition when it arrives, and it must be kept in a cool place, not too dry and not too damp. If it is kept in a place that is too damp, various fungi appear, and begin to attack it at once. If it is too dry, it loses its water content, and its protoplasm does not make combination with that of the other flower. So we must keep our pollen in a cool place, not too dry, not too warm and not too moist, and where it can breathe. We may put it in cold storage but not at a temperature below freezing. We may put it into the cold storage which florists use, and keep it for a long while. Some pollen will keep, viable for three weeks, under these conditions, possibly longer. It is important to keep your pollen boxes open at the top. They must be kept where the wind doesn't blow your pollen from one box to another. I had not been impressed by that point until this year. I had eight different kinds of pollen about the farm house, in different rooms, in order to be sure to keep them far apart. One day on my arrival from town ready for pollenating a number of trees, I found that a very neat housekeeper had found it undesirable to keep such boxes scattered about in so many places. She had put them all neatly together in a closet on one shelf, and there was none of the pollen that I could use, because the wind had mixed the kinds all up. I had eight kinds of pollen across which one kind of wind had blown.