In his book entitled, A Book of Trout Flies, published in 1935 Preston Jennings set the standard of excellence that has measured all subsequent work on fly-fishing entomology. This book would go on to become one of the most cherished and highly regarded books in angling history.
His experiments on how light refracts off of an insect’s wings and how the trout perceives such light on the water resulted in fly patterns surface resulted in fly patterns which are still popular with trout and the fly fishers. Two of these historic c fly imitations are the American March Brown and the Grey Fox.
Jennings was equally at home on the trout stream as he was in the lab. A highly regarded angler and fly tier, his work and contributions are legendary as a key building block in American fly fishing history.