Geographical Conditions of Manufacture 243 Tare TanNING INDUSTRY Raw MATERIALS Processes By-Probucts Probucts l. HIDES AND SKINS a Cattle hides b Horse hides ¢ Goat skins d Calf skins e Colt skins f Sheep skins 7 Pig skins 2. Water ... 3. Lime ...... V ashing _iming {airing 3 . Hair Fleshing .. .2. Flesh . . De-liming... 3. Ammonia . .. Bark ..... a Hemlock b Oak ¢ Sumac d Mangrove e Cutch Salt . Tannip- 5. 65. Dyes .. "ashing ying -reing “1nishinge Leather: + Sole leather Morocco Calfskin Russian Patent Crown Seal % Buckskin Grain. etc. UsEs Plaster, mattresses, felt Glue, fertilizer Chemical works, household uses Shoes Bookbinding Traveling bags Pocket-books filoves Automobiles Furniture Harness Saddles “0. Belts 11. Hose. etc. This diagram was made by a boy from the notes taken at a tanning factory. With the help of commercial geographies and an encyclopedia, he then traced each of the raw materials to its source, and under two new headings at the left of the diagram wrote the country of origin and the source of the product. He found, for example, that goat skins usually come from semi-arid countries where the grass is too meager or too coarse for sheep or cattle. Hence in the two additional columns, opposite the words * Goat skins.” he made these antries * CouNTRY OF ORIGIN Source oF Propuct Semi-arid and often poverty- Goats — hardy animals that stricken countries, like India, can live on coarse and meager \lexico, Turkey, and Algeria food The boy found that the leather tanned at this factory is mostly sold to shoe factories and automobile factories in Massachusetts and Michigan. Hence, after the list of finished products he added another column at the right, headed ‘ Distribution.” in which he wrote this information.