USING FLORIDA ENVIRONMENT IN TEACHING 31 poultry and protects their health. For further infor- mation see the Department of Agriculture bulletin, "Ramie". (10) 5-III. Frog Farming in Florida Frog farming has great possibilities in Florida. Natural marshy areas or ponds are adapted as to food supply and environment to the needs of the frogs. Observ- ing and reading on the life history of the frogs results in much scientific knowledge on reproduction, habitats, metamorphosis, adaptation, and protection of this par- ticular animal. Bullfrog farming in Florida has two other related industries: the raising, and selling of breeding stock and the tanning of frog skins which are used for shoes, purses, and other novelties. See the Department of Agriculture bulletin, "Bullfrog Farm- ing and Frogging" for additional information. (11) 5-III. Spanish Moss Aside from being a part of the tropical scenery of Florida, Spanish Moss as a peculiar variety of air- plant is an interesting and useful item for study in many areas in the state. The plant can be both help- ful and harmful. The fact that it is a native American plant and not of Spanish origin opens up an interesting history. Its nature, its means of growth, methods of propagation, and wide spread presence in Florida's forests lead into a study of its preparation for use and its economic value. Gathering, ginning, and then cur- ing the dark hair-like fibres for upholstering furniture, padding various articles, and for packing purposes may all be part of the study. "Spanish Moss in Florida," Department of Agriculture, is a helpful bulletin. (12) 6-V. Citrus Industry Florida has a wide variety of citrus groves. If the children live in an area where the fruit industry is important, an intensive study of the industry locally may be undertaken. Such a study might include not only the scientific information about the raising of fruit trees, and the harvesting of the fruit, but also some consideration of the social and economic problems of distribution and consumption, labor, government control and protection. Trips to the groves, to the cannery, to the packing sheds, to the refrigerator cars, and so on, should be preceded and followed by discussion.