""The Perfumer's Legacy or Companion to the Toilet: Containing a Treatise upon the Human Hair"" is a book written by R.B. and published in 1850. The book is a comprehensive guide to hair care and beauty, providing readers with a detailed understanding of the science behind hair growth, maintenance, and styling. It covers topics such as hair types, hair health, hair loss, and hair care products. The book also includes tips and tricks for achieving...