""Social Usages At Washington"" is a book written by Florence Howe Hall and published in 1906. The book provides a comprehensive guide to the social customs and etiquette of Washington, D.C. during the early 20th century. It covers a wide range of topics, including formal dinners, receptions, and balls, as well as more informal social events like afternoon teas and luncheons. The book also includes detailed advice on dress codes, seating arrangements,...