EMERGERS. By Doug Swisher and Carl Richards.

(1991) ND reprint. 4to. Ppviii,120. Colour and b/w photographs, illustrations. Black cloth-backed boards, spine titled in gilt.

"The moments when trout-stream insects leave their immature stage at the bottom of a river and rise to the surface to hatch are the most important in their life cycles. Now they are most vulnerable to trout; now they are at the ideal stage for fly fishermen to imitate. Yet this is one of the least understood and least written about phenomena." Contents include; equipment used for collecting, observing, rearing, and phtographing aquatic insects; life cycles and methods of emergence - mayflies, caddisflies, stoneflies, aquatic moths, black flies, craneflies, damsel and dragonflies, midges; factors affecting succesful emergence - current velocity, surface tension, temperature and wind, timing the hatch; invertebrate drift; patterns; techniques for fishing below the surface; techniques for fishing at the surface; coda; bibliography.