Correspondence
11
THE BULLETIN BOARD For those who are making regular use of bulletin boards as a means of supplementing their lectures and classroom exercises, let me call attention to the splendid material in the advertising pages of some of the journals. Every number of Indushial and Engineering Chemistry contains a t least four or five pages of interesting and educative advertising suitable for posting on a bulletin board. Items to be found include: methods of manufacture, new chemical products, new uses for old products, properties of materials, bits of interesting and important history. The JOURNAL OF CHEMICAL EDUCATION also carries a considerable amount of advertising which may be used in this way. One need not be concerned over the ever-present "sales campaign" for students are quick to separate the important from the non-important. Use of such illustrative material as this calls to mind Professor Chamot's contention that quite as much fundamental information is often to be obtained from the study of manufacturers' catalogs as from perusing a textbook. UNIVERSITY N. W. R A ~ S T R A W BROWN PROVIDENCE, RAODEISLAND
