This incident is typical of the way in which the scientific work in the schools may correlate with the wider social community. Just as the history classes may bring the pupil into touch with the political life outside the school, so the physics and chemistry class may connect him with the industry of the community and with those public services into which scientific processes enter. A boy, for example, brings to the chemistry class a bag of low-grade iron ore which he has found in the vicinity. The class, under the direction of the teacher, constructs a simple electric furnace and reduces the ore. This experiment is then used as the basis for a study of the great steel industry upon which the city of Gary is founded. A part of the chemistry work makes a direct contribution to the city. Gary has the good fortune, or the good sense, to have as chemistry teacher in the Emerson School the man who acts as municipal chemist for the city. As a result, the school laboratory becomes an extension of the municipal laboratory. The high-school chemistry pupils assist the chemist just as the smaller children assist them. With the chemist-instructor the pupils test the city water and the various milk supplies. Under the sanitary inspector they visit, as part of their “application” work, dairies, factories, bakeries, food-stores. Last year the class issued a “Milk Bulletin,” containing general information, with reports of their tests. The various articles were recorded as part of the English composition work, and the bulletin was printed by the pupils in the school printing-shop. In quality these bulletins seemed scarcely inferior to what an agricultural school might issue. On their inspection rounds, the class takes samples of sugars and candies from the various shops of the town, and tests them in the laboratory for purity and for the use of harmless coloring matter. Another class experiments with the soft drinks sold in the town, testing their composition, and studying physiological effects. The children are practically deputy food-inspectors, and make their reports on the official blanks. It is said that the result of this sort of inspection is that in a prosecution for violation of the pure-food laws in Gary a case has never been lost.