A book of this character is necessarily the work of many men, each of whom contributes some methods of his own, some invention forced upon him by the circumstances, to make the whole. Many of us are located in large cities, where intricate parts of the work can be farmed out to specialists in those lines. Others of us are located in small towns or in the tall timber, where we must produce the work entire and alone. I have endeavored to make this book practicable and workable in either case