El Bar Americano en España by Pedro Chicote (1927, p.100)

3 dropsAbsinthe base
0.5 copitagin base
0.5 lemonjugo de medio limón base
Seltzer water — agua de seltzdilution
1 wholeclara de huevo fresco — clara de un huevo frescoother
ice — 3 ó 4 pedacitos de hieloother
2 tablespoonjarabe de azúcar sweetener
  1. Shake very well with lemon juice, sugar syrup, gin, absinthe, ice, and egg white.
  2. Serve in a large glass and finish with seltzer.

Ice: Ice

Cocktails by Pedro Chicote (1928, p.262) — Absinthe and egg white

dropsAbsinthe — The source gives a few drops; the OCR suggests a very small quantity.base
0.5 copitagin base
0.5 lemonlemon juice — Jugo de medio limonbase
Seltzer water — Agua de seltzdilution
1 whiteegg white — Clara de un huevoother
ice — Hieloother
2 tablespoonSugar syrup — Jarabe de azucarsweetener
  1. Shake very well and top with seltzer in a large glass.

Ice: 3 to 4 pieces ice

This matters because it keeps the Morning Glory line connected to the Daisy family as well as the Fizz family.

The Artistry of Mixing Drinks by Frank Meier (1936, p.55)

0.5 lemonlemon juice — Lemon Juiceacid
0.5 whiteegg white — Egg Whitebase
1 glassspirit — Spirit of choicebase
Soda water — Syphon or Schweppes Sodadilution
2 teaspoonPernod — Anis 'Pernod fils'modifier
1 teaspoonsugar — Sugarsweetener
  1. Shake well, strain into a fizz glass, add a squirt of soda, and serve.

See also: Morning Glory Fizz, Brandy Daisy