Page:Popular Science Monthly Volume 33.djvu/813

Rh first stage of the making of its silvery robe. Going immediately to the spot it had chosen, it brushes its body with its paws, when the air detaches itself and forms a bubble under the leaf. The spider surrounds this bubble with the impermeable silky matter furnished by its spinneret. Returning to the surface, it takes in another layer of air, which it carries down and adds to the first