A practical angling manual that describes materials, fly dressing, and fishing techniques suited to northern streams. It provides precise guidance on selecting and preparing feathers, silks, dubbing, hooks, and casts, and includes colored plates illustrating flies and dressing materials. The text explains methods for wet-fly and dry-fly fishing, creeper and stone-fly tactics, upstream worm and minnow fishing, and offers streamside advice for adapting patterns and sizes to water conditions. Practical tips on rigging, line and cast handling, and photographic river scenes support hands-on practice and seasonal adjustment.