A good manual of effects for the ever useful thumb tip.

Thumb Tip Technique
Darwin Cleans Up His Act
Darwin's Center Tear
Darwin's One Hand Color Changing Silk
Darwin's Sweet Prediction
Clarence J. Wollersheim's Dimes to Half Mystery
Darwin's String to Chain
Darwin's Changing a Dollar into Four Quarters
Darwin's Vanishing Salt from Dollar
Wadman's Ring on String
Darwin's Double Color Changing Silk
Darwin's Marble to Sand
Darwin's Egg to Dove
Darwin and Zinga Match Routine
Jimmy Yoshida's Hawaiian Volcano
Jimmy Yoshida Bare Hand Silk Production
Darwin's Supernatural Cigarette Test
Darwin's Shocker!

Darwin's Quickies:
Fireworks Production
Wadman's Salt Gag
Moth Gag
Vacuum Cleaner
Salt Pour
Straw Wrapper to Silk

Darwin's Linking Chain
Darwin's Burnt and Restored String

Donated by Tim Pendergast