Whiskey Cobbler

In the 1862 Bartender's Guide by Jerry Thomas, he lists seven different Cobbler recipes, six of them are made with wines, only one, the Whiskey Cobbler is made with a spirit. Here is how he listed that recipe:

104. Whiskey Cobbler. (Use large bar glass)    2 wine-glasses of whiskey.    1 tablespoon of sugar.    2 or 3 slices of orange.    Fill tumbler with ice, and shake well. Imbibe through a straw