The recipe of Florodora was found on Esquire Drink DB (by D. Wandrich). This net resource is one of my favorite. Thanks Dave!
60 ml London dry gin
15 ml fresh lime juice
15 ml Chambord liqueur (I use BOLS Raspberry)
Shake well with 4 to 5 ice cubes in a chilled cocktail shaker, then pour unstrained into a Collins glass and top off with cold ginger ale.
Admirable summer cocktail!