_Diagnosis_ of these cases of vertebral disease may not always be possible in the early stages, yet the symptoms of progressive tenderness and stiffness in the region of the spine, the distortion in some instances of the spinal column, the subsequent appearance of localized motor and sensory symptoms, and later still the spasms or spastic paralysis in all parts behind the seat of the lesion, will be strongly suggestive of such a disease. When indications exist of osteoporosis, rachitis, or tuberculosis, of caries, abscess, or infectious lesions of the cervical or dorsal spinal region, the inference is still stronger. Then if reaction occurs under the tuberculin test, or if the urine contains an excess of phosphates in the herbivora, the case may be diagnosed with certainty. _Treatment._ This will rarely be admissible on account of the expense and uncertainty of result. Some meat animals may be killed for food. If otherwise, keep in narrow stall where the animal cannot turn even the head, feed from moderate level to avoid movement of the spine by the upward and downward movements of the head. Gentle brushing is useful as a means of cleanliness, and of toning up the muscular system. Nourishing food of an easily digestible kind is essential, and pure air and sunshine are important auxiliaries. A course of cod liver oil with bitters may be given to improve the general health, calcium sulphide may be tried in case of suppurative caries, and calcium phosphate will usually be desirable to improve the nutrition and consistency of the osseus system. In case of a valued patient which it is desirable to preserve for reasons of sentiment or affection, or for breeding purposes, one might be warranted in continuing a long and expensive course of treatment, but in the regular run of cases considerations of humanity and economy would counsel the prompt destruction of the animal. SLOW COMPRESSION OF SPINAL CORD. PARALYSIS. Causes: Caries, vertebral diseases and lesions, neoplasms, actinomycosis, tubercle, abscess, organizing exudates, parasites. Melanoma, cholesteatoma, sarcoma, papilloma, lipoma, glioma, chrondroma. Symptoms: advance insensibly, or by sudden leap with exudate, spasm, paresis, transverse, senses clear, muscular atrophy, advance from behind forward. Cervical, dorsal, lumbar lesions. Bladder, sphincters, tail. Symptoms increased by movement. Treatment: according to lesion. Tumors, hopeless. Blood clots, Actinomycosis. Analgesics. Electricity.