As to the form of the hook, whether Sproat, Pennell (turned-down), O'Shaughnessy, Sneck, and so on, it is a matter in which one cannot exercise personal choice to any great extent—one must needs be contented with the flies as he finds them. Hooks with the Sneck bend are favored for the smaller patterns; others may be dressed on any of the above-named hooks. Unless you are willing, many times, to undergo great delay in stocking your fly box, you must sacrifice a personal prejudice toward any particular form of hook for the sake of obtaining the pattern you wish in the desired size.
I give below a list of a few floating flies which I know to be successful under average angling conditions, and would suggest that in making your selection of dry flies you obtain some, at least, of the patterns dressed upon number ten hooks. The use of the very small English patterns, tied, as a rule, on number twelve hooks at the largest, is not at all times and in all places most advantageous on American trout streams. The flies named are, as far as may be, typical; that is, selected with a view to approximately imitating the general insect life (consisting largely of water-bred insects) of any trout stream, so that the angler may as a general thing find in his list a fairly close imitation of most of the natural flies, any one of which may be temporarily abundant on the water, and upon which there is reason to believe the fish are feeding.
The list is as follows: Coachman, Cahill, gold-ribbed hare's ear, Wickham's fancy, brown sedge, silver sedge, iron blue dun, whirling blue dun, and olive dun. These should be dressed upon hooks, numbers twelve and ten. It is seldom necessary to use smaller than a number twelve dry-fly, although, of course, occasionally only the very smallest flies are effective. To the flies named should be added the green May female, brown May female, and spent gnat female, of the new series of floating flies developed by Mr. F. M. Halford.
Of the above the coachman, Wickham's fancy, gold-ribbed hare's ear and Cahill are frankly "fancy" flies, not intended to represent any particular natural fly. The Wickham's fancy, coachman and gold-ribbed hare's ear are wonderfully successful patterns, as a rule, throughout the entire season, and under a great variety of angling conditions. The Cahill is a fly of very delicate coloration and dressing and is particularly useful over very low and clear water. The duns, olive, whirling blue and iron blue are dressed in imitation of various ephemera in the sub-imago or dun stage, and when the fish are feeding upon the natural fly these are apt to prove exceedingly successful.
The green and brown May fly patterns are representative of the corresponding Ephemeridæ, and their usefulness upon streams when and where the May fly is abundant is sufficiently obvious. The Caddis flies in the nomenclature of the dry fly are known as "sedges"; the silver sedge and brown sedge belong to this class. The spent gnat pattern represents the female May fly which, having voided her eggs upon the water, thereafter falls upon the surface of the stream practically lifeless and with wings flat and outstretched. The spent gnat, accordingly, is dressed with horizontal, not erect, wings.
For carrying eyed-flies various fly-boxes are furnished by the tackle dealers. The method of holding the flies is usually by means of a metal clip, although some boxes have several small compartments with transparent (celluloid) covers, and others have cork strips into which the fly may be fastened. The last sort is the least satisfactory. As a rule, in the ordinary form of eyed fly box the metal clips are set very closely together, and it is advisable to procure a box capable of holding at least double the number of flies you intend to carry, so that they may be inserted without crushing and be easily distinguished and removed.
Paraffin oil, or some one of the other similar waterproofing liquids furnished by the tackle dealers, is a necessity to the dry-fly caster. A floating fly, if perfectly dry, will float fairly well for a number of casts without the use of paraffin; but it soon becomes drowned and sodden and very difficult to dry out by merely false casting. Whatever preparation may be used (and I have found very little practical difference in them) it should be carried in a small bottle having a stopper with brush attached. Apply the oil to the fly lightly, and remove the superfluous liquid by pressing the fly between folds in your handkerchief. It is usually practicable to prepare a number of flies in this way before going to the stream, thus obviating the the necessity of carrying the "oiler."
It would seem unnecessary to consider the matter of the creel, waders and other general fly-fishing equipment, as these are familiar to every fly-fisherman of any experience. However, for the benefit of the virtual beginner it may be said that a rather larger basket than that usually advised to the trout-fisherman say a creel of twenty-pound size—is preferable for many reasons. The new style sling, which suspends the basket from the left shoulder, should be used.
Waders, of course, are necessary. Whether wading pants, wading stockings, or ordinary sporting rubber boots are worn is more or less a personal matter generally dependent upon the conditions under which the fishing will be done. The wading stockings, worn with woolen socks and hobnailed wading shoes, are as a rule the most satisfactory equipment. A leader-box in which extra leaders may be carried between pads of dampened felt and a landing net are other requisites.