Incorporators for Salad Dressing

Odd bottle #2.  Once the dressing for the salad was made, it was put in a bottle or poured down the side of the 'salad dish', to be mixed only when ready to eat, according to William Kitchiner.  He specified “an Ingredient Bottle, - These are sold at the Glass Shops, under the name of Incorporators,— we recommend the sauce to be mixed in these, and the Company can then take it, or leave it, as they like.”  [The Cook's Oracle by William Kitchiner.  London: 1822]