Two times there was a wholesale destruction of Jacksonville's official records – in the War Between the States and by the fire of May 3, 1901. The author's effort in this work was to collect all of the available authentic matter for permanent preservation in book form. The record closes as of December 31, 1924. The record is derived from many sources – long forgotten books and pamphlets; old letters and diaries that have been stored away as family memorials of the past; newspapers beginning with the St. Augustine Herald in 1822 (on file at the Congressional Library at Washington) fragmentary for the early years, but extremely valuable for historical research; almost a complete file of local newspapers from 1875 to date; from the unpublished statements of old residents of conditions and outstanding events within the period of their clear recollection; and from a multitude of other sources of reliability. The search through the highways and the byways for local history was in the spare moments of the author stretching over a period of a score of years, a pastime "hobby" with no idea of making money out of it. No attempt has been made to discuss the merits of any incident, but only to present the facts, just as they were and just as they are, from the records and sources indicated.

The past decade has seen a major resurgence in optics research and the teaching of optics throughout the major universities both in this country and abroad. Electrooptical devices have become a challenging form of study that has penetrated both the electrical engineering and the physics departments of most major schools. There seems to be something challeng ing about a laser that appeals to both the practical electrical engineer with a hankering for fundamental research and to the fundamental physicist with a hankering to be practical. Somehow or other this same form of enthusiasm has not previously existed in the study of photoelectronic devices that form images. This field of, endeavor is becoming more and more so phisticated as newer forms of solid state devices enter the field not only in the data processing end but in the conversion of radiant energy into electrical charge patterns that are stored, manipulated, and read out in a way that a decade ago would have been considered beyond some fundamental limit or other. It is unfortunate, however, that this kind of material has heretofore been learned only by the process of becoming an apprentice in one or more of the major development laboratories concerned with the manufacture of image intensifiers or television tubes or the production of systems employing these devices.