This passage from an 1800s book that offers a treatment for masturbation — including cutting your hair short and sleeping on a hard bed and pillow with ice on your neck — is kind of disturbing.
They should bring those back, be good for a little boost on a long day (couldn't be any worse for you than chugging a couple redbulls...)
They are the initials of the letter writer and the initials of the typist.