They huddle together on the central comb, with the queen in the midst of them, attended by her guard. Row upon row of bees surround the sealed cells, the last row forming the envelope, as it were; and when these feel the cold stealing over them, they creep into the crowd, and others at once take their places. The whole cluster hangs suspended, clinging on to each other; rising and falling as the cells are gradually emptied of their store of honey. For, contrary to what is generally believed, the life of the bee does not cease in winter; it merely becomes less active. These little lovers of sunshine contrive, through a constant and simultaneous beating of their wings, to maintain in their hive a degree of warmth that shall equal that of a day in spring. And they owe this to the honey, which is itself no more than a ray of heat which has passed through their bodies, and now gives its generous blood to the hive. The bees that are nearest the cells pass it on to their neighbors, and these in their turn to those next them. Thus it goes from mouth to mouth through the crowd, till it reaches those furthest away. And this honey, this essence of sunshine and flowers, circulates through the hive until such time as the sun itself, the glorious sun of the spring, shall thrust in its beam through the half-open door, and tell of the violets and anemones that are once more coming to life. The workers will wake, and discover that the sky again is blue in the world, and that the wheel of life has turned, and begun afresh. VI THE PROGRESS OF THE RACE It is as well, before ending this book--as we have ended the story of the hive with the silence that winter brings--to add a few words about the extraordinary industry of the bees. People are apt to say, while admitting that it is very wonderful, that it has always been the same from the very beginning of time. Have the bees not, for thousands of years, built their combs, their marvelous combs, in just the same way; these combs that combine the most perfect science of chemist and architect, mathematician and engineer; combs in which it would be impossible for us to suggest a single improvement? Where shall we find any instance of progress, of the bees having discovered some new method or change in the old; show us that, and we will gladly admit that the bees, besides their instinct, possess also an intellect worthy of being compared with that of man! This method of reasoning is not without its perils. It is the same kind of "mere common sense" that the people of Galileo's time displayed when they refused to believe that the earth revolved in space. "The earth cannot possibly turn," they would say, "for we can see the sun move in the sky, see it rise in the morning and set in the evening. Nothing can deceive our eyes." Common-sense is all very well; but it is not a sure guide unless it go hand in hand with a certain reflection and judgment.