We had a glimpse last month at some of the interesting things concerned in bread and bread-making. The house is full of things we have known so long that we scarcely think of them except as parts of the daily routine, but which, if we turn our attention to them, prove veritable mines of information, history, travel and even romance. _Sponges_ A sponge is the skeleton of a very, very, tiny animal, or rather of a colony of thousands of such animals that live under water. When the little animals die they leave behind them this network of elastic fibers that they have built up. For a long time it was thought that sponges were plants, and even now scientists know really very little about these little animals. You have noticed how many kinds of sponges there are. These different varieties are caused partly by differences in temperature and chemical composition of the water and partly by the fact that there are more than one species or variety of the animal itself. There is no need to enumerate all the kinds of sponges from the fine, soft ones used in surgical operations to the big, coarse ones used for washing carriages. Nearly all the sponges inhabit salt water and the best ones come from the Mediterranean, particularly the Levant or that eastern part of the Mediterranean bounded by Syria, Asia Minor and the Holy Land and Egypt. Others are found in the waters around Florida and in those near Australia. The sponges are secured by means of native divers. In some places these men work all day long from sunrise to sunset through six months of the year, resting during the winter. The work is, of course, very hard and few of them reach old age. Often they are treated with inhuman cruelty by their employers and many are killed by sharks. Particularly in Florida there have been attempts made to raise sponges artificially, but though it is easy to secure the spawn of the tiny animals and succeed in getting them to attach their little colonies to stones, coral or other objects under water, the sponges never reach any considerable size and are commercially useless. They have also tried to propagate them by cuttings or slips, but here arises the difficulty of making the cuttings attach themselves to other objects, which is necessary to their development. And the little animals themselves, they go right on very quietly drinking in water and getting all they need from it—air, food and drink—whether they are off the coast of Europe, Asia, Africa, America or Australia or in a little glass aquarium being looked at through a microscope by a dried-up old man with spectacles and side-whiskers. And we use the sponges. _Maize_