My eighth is in gaiters, but not in shoes;

My ninth is in candle, but not in light;

My tenth is in horses, but not in bite;

My eleventh is in inch, but not in measure;

My twelfth is in satin, but not in treasure;

My thirteenth is in coke, but not in ton.

My whole is a useful invention.

2. My first is in silent, but not in loud;

My second is in alone, but not in crowd;

My third is in example, but not in talk;