Governor: a classic wet trout fly from Favorite Flies and Their Histories by Mary Orvis Marbury

Hook: #10 sproat
Thread: red
Tag: red silk
Body: peacock herl
Wings: wild turkey slips
Hackle: soft brown rooster

Head cement recipe:
Goop
Xylene (epoxy thinnner)

Instructions:
Fill a quart jar half full with Xylene
Squeeze a tube of Goop into the Xylene
Shake until the Goop is dissolved; add Xylene to desired consistency

Apply with a pin or needle dipped in the liquid

https://youtu.be/AJbvJUixaCs