As we had broken into the home of the honey-ants and had pretty nearly wrecked it, it seemed only fair that we should try to help our honey-ants begin another home under as kindly conditions as possible. So we put as many of them as we could find, foraging workers, honey-holders, and the queen whom we found in a special queen room, into our glass fruit-jar with some soil, and brought them all home and put them into a formicary. Which is simply an artificial ants' nest, or house already arranged for ants to live in. It has a place to hold food and has dark rooms and sunny rooms, cool rooms and warm ones, all nicely fixed with runways connecting them, and food is put in as often as necessary and always in one place, which the ants learn to know very soon, indeed. This makes housekeeping easy and pleasant for the ants, and lets us see a great deal of how it is carried on, because there are glass sides and top to the house, so that by lifting little pieces of black cardboard or cloth we can look in and watch the ants at work. The honey-ants' colony seemed to live very contentedly in our formicary, for they went ahead with all their usual business of laying eggs and rearing babies and feeding them, and finding honey and getting the honey-jars loaded with it and hung by their feet from the ceiling of their room, and all the other things that go on regularly in a honey-ant's house. The principal thing we wanted to do, however, was to learn how the honey-jars got filled and also how they got emptied again! And this was not at all hard to find out, although we never found out certainly where the worker foragers got their honey in the Arboretum. McCook found that his foragers in the Garden of the Gods gathered a sweet honey-dew liquid that oozed out in little drops from certain live oak-galls near the nest. But our ants seemed to be getting their honey from somewhere up in the pine-tree, for there was a constant stream of them going up and down the trunk. Besides, many of those coming down had swollen bodies partially filled with honey, while none of those going up did. Now the only honey supply in the pine-tree that we know is the honey-dew given off liberally by a brown roundish scale insect that lives on the pine-needles. So we _think_ our honey-ants gathered their honey material from these honey-dew scale insects. But we have seen them collect honey stuff from various aphids and also from the growing twigs of live-oak trees. They seem to be willing to take it wherever they can find it.