Hams and shoulders were always smoked at the end of about two months. When getting ready to smoke some pieces, the farmer would first soak them twenty-four hours in clear, cold water. By tying a string through the shank of a ham and running this string up through a hole in the bottom of an inverted barrel, he could secure it by tying to a small stick on the outside of the hole. Under the barrel he would build a small fire, sometimes of corncobs, sometimes of hardwood and sawdust. It was the task of the small boy of the family to start this fire in the morning and maintain it all day, the idea being to keep a fire which was not too hot but which would give off plenty of smoke. [Illustration: TAMWORTH BOAR.[22] Bacon Type Hog.] [Illustration: TAMWORTH SOW.[22] Bacon Type Hog.] [Illustration: BERKSHIRE BOAR.[22]] [Illustration: BERKSHIRE SOW.[22] Dual Purpose Hog.] At the end of three days the meat was considered thoroughly smoked, although some men liked it smoked much longer. After it had cooled off from the smoking it was hung in a cool, dry place or packed in a barrel of oats, so as to keep it from getting a damp mold and spoiling. When a farmer had killed a hog, he would render out certain of the fats in an iron caldron. He would take certain parts of the meat and make his home-made sausages, but further than that, by-products were practically unknown. The foregoing might be considered a short synopsis of the pork-packing industry up to the point which we will call the Modern Era. This period had a small start back in the early days when a small dealer would kill a few hogs, sell the sausage and lard and cure and smoke the parts, carrying them as far into the summer months as he could, selling them out to his trade. Various methods were resorted to in order to keep mold and insects from spoiling the product. Perhaps the most generally used of these methods was to sew the piece of meat in a canvas sack and paint it with barytes. This gave them an airtight container for the meat and enabled them to keep smoked meats all during the summer months. The advent of refrigeration, however, really marked the beginning of the modern packing era. When men learned the control of temperature it became possible for slaughter houses to assume such proportions as to warrant scientific research for the best possible methods of carrying on the business. The story of the development of these methods would be almost endless, but a trip through an up-to-date packing plant of the present day will show what time has brought about.