Pt. 1. Their history, life habits, economic status, and control, by S. P. Young: Introduction

Distribution of the wolf in North America, past and present

Habits and characteristics: Coloration; Weights and measurements; Scent glands; Strength, speed, and endurance; Voice; The wolf as a swimmer; Use of runways; Reproduction; Denning and rearing; Individual and family traits; Gorging; Fear of man; Attacks on man

Natural checks, parasites, and diseases

Economic status: The skin of the wolf, its uses and values; The wolf as human food; Domestication of the wolf; Wolves and dogs; Food of the wolf: results of stomach analyses: laboratory; field; general observations: vegetable matter; offal and carrion; living prey: wildlife; domestic animals; destructiveness of renegade wolves

Measures used in wolf capture and control: Traps; Pits; Corrals; Deadfalls; Ice boxtrap; Edge trap; Piercers; Fish hooks; Snares; Set guns; Steel traps, scents, and their use: modern use of steel wolf traps and of scents; the Tidewater set; the Muskeg set; snow and ice sets; Hunting: ring hunts and drives; hamstringing and lassoing; use of dogs; stalking; den hunting; professional hunting; Preventive measures: fencing; woods burning; Poisoning; The bounty system

Brief history of wolf depredations and cooperative federal wolf control.

Pt. 2. Classification of wolves, by E. A. Goldman: Introduction

History

General characteristics

Pelage and molt

Variation: Geographic; Individual

Explanations: Measurements; Colors; Specimens examined; Use of distribution maps

List of North American species and subspecies, with type localities

Canis lupus and subspecies

Canis niger and subspecies.