The industrial poison of next importance is phosphorus. This poisoning is confined almost entirely to the match industry. There are two kinds of phosphorus, the yellow or white, and the amorphous or red. The yellow is poisonous and is used in making the “strike anywhere” matches. This, however, is being replaced by the non-poisonous, or more harmless red phosphorus. The safety matches contain no phosphorus and are harmless. Phosphorus poisoning produces gastric disturbances, bronchial catarrh and caries of the teeth with necrosis of the lower maxillary. Other bones of the body may also be affected by necrosis. Brass, copper, zinc, and bronze workers are also affected by the dust and fumes from these poisons. Brass workers suffer with brass founders’ ague in which there are chills, vomiting, headache and general depression. Chromium Poisoning Chromium is also responsible for industrial poisoning. It is used in the manufacture of dyes and in the coloring of wall paper and fabrics. It affects the mucous membrane lining the nose and throat and produces an inflammation of the eyes and ulceration of the skin. CHAPTER X DEFINITIONS DEFINITIONS DIS-EASE CLASSIFICATION ACUTE AND CHRONIC STAGE OF EXPOSURE PERIOD OF INFECTION STAGE OF INCUBATION PERIOD OF INVASION DEGREE OF INFECTION CONTAGIOUS INFECTIOUS MORBIFIC AGENTS PATHOGENIC GERMS NON-PATHOGENIC GERMS COMMUNICABILITY HOST PARASITES COMMENSAL ANTIBIOSIS SYMBIOSIS ANTIBODIES ANTIGENS SAPROPHYTES OBLIGATE SAPROPHYTES SEPTICEMIA TOXEMIA SAPREMIA EPIDEMIC ENDEMIC SPORADIC PANDEMIC FOMITES CHAPTER X DEFINITIONS Dis-ease Webster defines dis-ease as, “an alteration in the state of the body or of some of its organs, interrupting or disturbing the performance of the vital functions, or a particular instance or cause of this; any departure from the state of health presenting marked symptoms.” In using this word chiropractically it is always hyphenated to indicate that it is a condition wherein there is a lack of ease. Incoördination is the term used in Chiropractic, meaning a lack of coördinate action in the body which is caused by interference with transmission of mental impulses. Classification Dis-eases are usually classified as constitutional and environmental. A constitutional dis-ease is one that is due to defects in the structures of the body such as dis-ease of digestion, while environmental dis-eases are attributed to extrinsic environmental conditions. The infectious dis-eases are given in this class. Chiropractically all dis-eases are brought on by interference with transmission of mental impulses caused by defective mechanism of the spinal column. The so-called environmental dis-eases are chiropractically the result of the lack of adaptation to environmental conditions. Acute and Chronic