Before we delve into the horrid world of what food colors the confectionery cook of 1876 should avoid, this little review from The Publishers' Weekly, No. 237, July 29, 1876:
The Little Confectioner, by Smith Hicks (N.Y. News Co.). This little book is quite a prize to young amateur cooks who all have more or less a passion for making confectionery. They will find here every practical direction for their instruction and assistance written out in the plainest and most intelligent manner. 18mo, cloth, 60 cents.
Young, amateur confectioners, consider yourself duly warned.