Symbols
The ends of some advertisements contain manicules or a symbol of three asterisks, used to specify additional information about the author or logisitic information regarding how to contact them for their services. The purpose these symbols serve is much like how we use fine print today.
The manicule on page 5 points to the sentence: "His teeth, even whole sets, never turn black." This sentence was used by the advertiser to add an additional promise to readers.
Three asterisks on page 8 precede the sentence: "Patients may agree for a perfect cure, or by the month, by the year, or for life."
Three asterisks on page 12 precede the sentence: "Letters (post paid) duly answered."