Family

Applegreen's Bar Book by John Applegreen (1904, p.59) — Applegreen 1904

0.5 whole limeLime juice (fresh) — half a limeacid
0.5 whole lemonLemon juice (fresh) — half a lemonbase
1 jiggersloe gin — sloe ginbase
Soda water — seltzer or ginger aledilution
1 wholeegg — eggother
ice — fine iceother
1 tbspsugar — sugarsweetener
  1. Muddle the lemon, lime, and sugar in a large mixing glass.
  2. Add the sloe gin, egg, and fine ice, shake well, and strain into a large thin glass.
  3. Fill with seltzer or ginger ale and serve.

Ice: Fine ice

Nose
Berry fruit, citrus, and egg-foam richness rise from the glass.
Palate
This is exactly the sort of borderland drink the ontology should keep, because it sits between sour, fizz, and highball logic rather than fitting neatly into a later single category.
Finish
The finish is tart, fruity, and lightly sparkling.
Summary
A sloe-gin egg sour stretched toward long-drink service.

See also: Sloe Gin Cocktail, Tom Collins, Whiskey Sour