Each of the volumes offered here represent a particular subject matter concerning vampires in the 18th century (Occult Philosophy, Alchemy, Medicine, Theology). 

Volume 1 – M. Michael Ranft's Tractate on the Chewing and Smacking of the Dead in Graves, Wherein the true nature of the Hungarian Vampires and Bloodsuckers is shown, and all the writings which have so far come to light from this matter are reviewed (Leipzig, 1734): This work is a collection of historical and philosophical dissertations written between 1725 and 1734 as an academic response to the Imperial Reports of vampirism that spread across Europe. Michael Ranft was a magister and deacon who sought to determine whether the phenomena described in the reports of vampires were of a Godly miracle, a demonic witchcraft, or if they fell upon the most hidden coats of natural philosophy. This nearly 300-page work is considered among the most important and comprehensive studies of human decay, disease, and their relation to the occult of the time. He takes on a philosophical approach to apparitions, analyzes cases where the dead were found to eat upon their own burial garments and limbs within the confines of their graves, and investigates the purported animation of the dead and their malignant effect upon the living.

Volume 2 - This volume contains several alchemical and medical writings upon the reports of vampirism. Including: 

Part 1: Anonymous - Official and Cumbersome Report upon those Vampires or People-Suckers, Which emerged in this and previous years in the Kingdom of Serbia. In Addition to its reasoning, a circular letter of an Officer of the Prince Alexandrian Regiments from Medvedia in Serbia to a famous Doctor of the University Leipzig. (1732)

Part 2: Gottlob Henreich Vogt - A Short Reservation on those Official Reports on Account of Vampires or People and Cattle-Suckers, Likewise the Reasoning thereof, come to light in Leipzig regarding the World-Spirit, dispatched to good friends. (1732) 

Part 3: Gottlob Henreich Vogt - The subtle but once again forgotten Third Part of Man, Containing the appended source of many errors, namely the doctrine of those Temperaments, etc. (1732) 

These works are a historical dispute upon the application of alchemist philosophy to the question of vampires reported in the Holy Roman Empire. These writings argue upon the principles of the famed Paracelsus and philosophize upon the concept of the spirit-world, the historical application of the humors or temperaments in medicine, and whether to deduce the associated phenomenon in the reports of vampires to a doctrine of qualified poisons.

Volume 3 - This volume compiles several Medical writings on pathology and autopsy made in response to the imperial reports of vampirism that were made public and after requests for an academic opinion on the matter were made from royal and military officials. Including:

W.S.G.E. A Curious and very Miraculous Report on the Recent News in Serbia Presenting Vampires or Blood-Suckers, Derived from authentic news, and accompanied with historical and philosophical reflections. (1732) The volume is expanded and Appended with correspondence and other medical writings from this historical debate.

This main work by W.S.G.E. was semi-anonymously written from the perspective of a physician who sought to solve the issue of vampirism through his experience in Medicine. His writings heavily cite the famed Michael Alberti, who wrote extensively on early criminal forensics and imaginary diseases. This physician provides annotations upon the narratives and autopsies of the reported vampires, lays out a description of a variety of diseases, and reflects upon the smacking, the bleeding, and incorruptibility of corpses that were recently unearthed and executed.

Volume 4 - Johann Christoph Harenberg - Sensible and Christian Thoughts upon those Vampires or Bloodsucking Dead, so among the Turks and on the borders of Serbian Lands to suck the blood of the living men and cattle, accompanied with all sorts of theological, philosophical, and historical notes brought from the realm of spirits. (1733)

Two highly esteemed nobles implored Harenberg to write this treatise on vampirism. This work, written by a theologian and educator, delves into the histories of folklore, mythology, and utilizes theological principles to explain the purported incidents of vampirism, werewolves, witchcraft, and the interactions of the spirit-world. Harenberg also analyzes the historical use of hallucinogenic plants in both criminal enterprise and religious rituals, with a plethora of narratives that might deduce a reasonable connection to the official reports of vampirism that had recently emerged at the time. This famous treatise was even mentioned in LeFanu's gothic horror novella Carmilla.

In addition to the four volumes, many extras are also present. Each of the extras pertain to specific volumes but they are presented separately in a bundle and are NOT bound within any of the volumes. These include: 4 ex-libris bookplates; foldout genealogical table (Michael Ranft); The Nekyia Foldout (Occult Philosophy); The Temperament Set (Alchemy); Plants of The Infamous Powder - Set (Theology); a set of facsimiles of historic maps depicting the actual locations where these officially reported incidents of vampirism occurred. These maps were hand drawn in the same century as the reports depicted in these old texts; official documents and reports on vampirism, written by officials and surgeons who visited and investigated the suspected dead and even dissected their bodies to discover and record the signs associated with vampirism.