This privately printed pamphlet contained a color statistical graphic entitled "Diagram of the causes of mortality in the Army of the East" which showed that epidemic disease, which was responsible for more British deaths in the course of the Crimean War than battlefield wounds, could be controlled by a variety of factors including nutrition, ventilation, and shelter. The graphic, which Nightingale used as a way to explain complex statistics simply, clearly, and persuasively, became known as Nightingale's "Rose Diagram." In January 1859 Nightingale conventionally published and distributed a 16-page pamphlet entitled  A Contribution to the the Sanitary History of the British Army during the late war with Russia. This also contained a copy of the Rose Diagram. The statistical tables used by Nightingale were prepared by William Farr from Andrew Smith's tables and other official documents. Digital facsimile of the 1859 edition from Harvard' Library at this link.