154 MODERN PRACTICAL ANGLER. 
In the event of a sudden immersion these latter fill with 
water, and thus act as plummets, loaded with which even 
a strong swimmer may very easily be drowned. Wading 
trousers, on the contrary, take so long to fill that they 
practically act as floats during a time which is generally 
sufficient to enable a swimmer to reach the bank; and 
they give of course a non-swimmer a proportionately 
better chance than he would otherwise have. 
If leather boots are used, the best dressing that I am 
acquainted with, as also for shooting-boots, is a coat of 
the green-looking waterproof paste manufactured by 
Messrs. Strawson, of Crewkerne, Somersetshire ; and for 
merely keeping the leather pliant when not in use, the 
following will be found an excellent mixture :— 
Waterproofing for boots &'c.—Burgundy pitch, 1 02.; bees’ wax, 2 02. ; 
turpentine 2 0z.; neatsfoot oil, 1 pint. The turpentine should be added 
just before taking the composition off the fire. 
SALMON AND GRILSE FLIES. 
For the arguments bearing upon the question of what 
a Salmon-fly ought to be—the rationale, that is, of 
Salmon-flies—the reader is referred to the general intro- 
ductory observations on fly-fishing, Chapter VI. The 
figures in the frontispiece represent the three flies 
therein alluded to dressed of three different sizes, so 
as to exhibit in the most convenient form—the arrange- 
ment of wings, hackles, &c.; No. 1 being tied on a 
double hook, showing with the foreshortened diagram 
annexed to it the proper angle of “ set” for the latter. 
