•Why it earns a slot
Why it earns a slot: Harte invented the frontier archetype of the gambler with a code and the outcast with a heart of gold in a single sitting, and the title story's flood ending refuses the sentimental rescue the setup seems to promise.
A mining camp of gamblers and outcasts adopts a dying woman's newborn as its collective redemption, then loses everything to a flood the same year its luck peaks.
This distillation is written from the freely available original, which is always the better read when you have the time: Project Gutenberg.