Paris: Librairie E. Bernard et Cie 1897. , 113,  pages. 4to. 9 x 11 inches. Half morocco over marbled boards. Paper lightly browned. Upper corners bumped. "Illustrated with 150 figures." Text in French. Very Good. Boards. 
Extracted (and published separately) from "La Revue scientifique et industrielle de l'année", Année 1896. Chapter One is historical, Chapter Two deals with "Les Rayons X" [X-Rays], Chapter Three "La Radiographie", Chapter Four a variety of topics that appear to deal with various energy sources that can be used to produce xrays. Three additional chapters are "Les ampouyles radiographiques", "les appareisl a faire le vide" and "les applications des rayons X".
Laid in is a letter from Henry Schuman Ltd Rare Books from 1964 to a Boston customer suggesting it might be of interest to them, at a price of forty eight dollars. Schuman notes: "One of the earliest extensive reviews of the subject, historical as well as technical, with bibliographical notes in the text."