On the nature and treatment of the cattle plague / by R.H. Allnatt.

  • Allnatt, R. H. (Richard Hopkins)
Date:
1865
Catalogue details

Licence: Public Domain Mark

Credit: On the nature and treatment of the cattle plague / by R.H. Allnatt. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    9/20 (page 9)
    cii-rij saturated with elemental electricity, have isolated it to the higher regions, and deprived the air in immediate contact with the earth of its normal quantity of ozone, which is known to be the greatest natural purifier existing. EFFECTS ON THE SYSTEM. When an animal breathes an infected atmosphere, a portion of the aerial poison is taken with the air into the arterial blood, and enters the circulation. The diseased condition of the blood thus produced is the sole cause of the subsequent disordered state of the vascular solids, for this black and poisoned blood paralyses the heart and the whole of the vascular organs. It is this that causes the cold and shrunken state of the animal in the latter stages of the disease, and diminishes the functions of the brain and of every other organ in the system. All those detrimental agents that are attracted into the circulation by the lungs mix immediately with the curreid, and change the physical properties of the blood according to their cliaracter; and as animal heat is produced by the union of pure oxygen with carbon in the lungs, it is clear that anything which impedes that union must, pro tanlo, tend to lower the vitality. The first effect of inspired air in healthy lungs is to re- move the carbonic acid from the circulation, and when that is effected, the blood is converted from venous to arterial. It is supposed by Dr. Stevens that certain aerial poisons Mhich produce fevers, act primarily as »edatives, not as stimuli; and thus the subsequent disease partakes of the nature of the exciting agent, and assumes a typhoid type of low vitality. §