When a great scientist named Sir William Thomson was asked about the size of a molecule, he replied: “If a drop of water were magnified to the size of the earth, the molecules would each occupy spaces greater than those filled by small shot and smaller than those occupied by cricket balls.” That gives us about as clear an idea as it is possible to get of the size of molecules. And yet molecules are made up of even smaller particles, called atoms. An atom is the smallest division of anything that we know about now. A molecule of water is made up of three atoms. Evaporation of water consists of the movement of these atoms in such a way as to make the liquid water change into a gas. Freezing water into ice is caused by making the molecules, and, in turn, the atoms, stick to each other. It takes a great deal of power to separate the molecules in water, and for this reason water was long regarded as something which could not be divided up, or, in other words, a basic element, such as the oxygen in the air. Pictorial Story Of The Fishing Industry [Illustration: FISHING COMING ABOARD HALIBUT FISHING ICED UP BAITING UP Six pictures by courtesy of Gloucester (Mass.) Board of Trade.] [Illustration: MODERN FISHING VESSELS NIAGARA ARTHUR JAMES TARTAR MARY DE COSTE ALICE] [Illustration: SETTING THE TRAWL HAULING THE TRAWL] [Illustration: DRAWING THE NET] [Illustration: FISH CURING PITCHING OUT FLAKE YARD FLAKE YARD FISH WHARF] [Illustration: PREPARING Salt Fish FOR MARKET PACKING SKINNING BONE PULLING DRY FISH SHED] The Story in a Box of California Oranges For several hundred years oranges have grown in this country. For about the last forty years men have made a business of growing them. Oranges and lemons are called citrus fruits on account of their content of citric acid. The two predominating varieties in California are the Washington Navel and the Valencia orange. The California Navel orange is in the markets of the country from December 1st until about June 1st, when the California Valencia type takes its place and remains until the latter part of November. It is a fact, therefore, that oranges are now picked fresh every day the year round in this country, and that the California oranges you buy in the summer are not fruit that has been held in storage, but are as fresh as any fresh fruit that the retailers offer. Most California oranges and lemons are picked from the trees by gloved hands, so that the finger nails of the pickers will not injure the skin, for even a tiny scratch on the skin of an orange or lemon is sufficient to open the way for germs of decay. Mr. G. Harold Powell, formerly connected with the United States government, was the discoverer of this source of great loss to the citrus industry. The use of gloves in the picking is thought to save the growers approximately $1,000,000 yearly.