Queen's Favorite (Shaved Ice tumblerful)

A fountain formula rather than a set of instructions: the dispenser was expected to know that the syrups go over the ice and the glass is then filled from the carbonated water draught. Here is what the shorthand assumes.

• The tumblerA soda tumbler of the period held about 8 to 10 ounces. Half a tumblerful of shaved ice is roughly half a cup, packed loosely, leaving room for about 4 to 5 ounces of carbonated water on top.
• The missing last lineNothing in the text says to add soda, because at the fountain that was understood. Draw the carbonated water onto the syrups with a coarse stream to mix, then top with fine stream. Without it the drink is only an ounce and a half of syrup on ice.
• Shaved, not cubedShaved ice was cut from a block with a plane and behaves like wet snow, chilling instantly and diluting fast. Crushed ice from a blender is the nearest equivalent; whole cubes will leave the syrups sitting unmixed at the bottom.
• Fountain syrups are heavier than modern onesPeriod soda syrups were generally much denser than modern ones, often made close to saturation, so half an ounce carries real sweetness and body. A thin modern syrup at half the sugar will make a watery drink; a heavy sugar syrup base is closer to the intent.
• Raspberry syrupThis meant syrup made from pressed raspberry juice, often lightly fermented first to clear it, not the raspberry flavouring sold today. A good fruit syrup or a reduced raspberry puree strained and sweetened is closer to the intent.
• Vanilla syrupFountain vanilla syrup was built on a vanilla extract or tincture, and it does the work of rounding the two fruit flavours rather than reading as vanilla itself.
• YieldOne glass, about 8 ounces. The three half-ounce measures were dispensed by measure at the fountain, so scaling up is simply a matter of multiplying.