On the Writing of the Insane, with illustrations, by G. Mackenzie Bacon, M.D.; 1870; John Churchill and Sons, London.
A book of observations on the peculiarities of writing styles as shown by asylum patients. G. Mackenzie Bacon was a medical superintendant at Cambridgshire County Asylum (now Fulbourn Hospital) located near Cambridge, England. As well as the fascinating images, the book also gives a series of transcribed excerpts.
Read more at The Public Domain Review