Softcover, 112 Pages In Commodities by Freight Car from Kalmbach Publishing, noted Model Railroader author and editor Jeff Wilson discusses freight cars and the cargo they carry. As the production and consumption of commodities like grain, coal, lumber, coil steel, cement, and more have evolved over the years, so have the railroad cars that haul them. Commodities by Freight Car shows you which cars carried which cargoes in the era you model. You'll learn how all-purpose boxcars, gondolas, and flats gave way to a dizzying variety of specialized freight cars for coil steel, lumber, flour, sugar, auto parts, and frozen foods; how freight handling has changed over the years; how railroads handle hazardous cargoes such as chlorine and liquefied petroleum gas (LPG); which experimental car designs worked to make transporting goods more efficient - and which failed, and much more. If you are interested in how to operate freight cars on your layout in a realistic manner, this book is for you! Commodities by Freight Car is one of many Kalmbach model railroading how-to books. Softcover, 112 pages.