Rachitis. Rickets. 575 



no leukaemia and no exophthalmia. The patient died on the 

 third day. 



Jeswejenko records that of a four year old English thoroughbred 

 which after a race showed anorexia, weakness, thirst, rapid 

 pulse, palpitations, conjunctivitis, enlarged thyroid and after 

 fourteen days exophthalmia with thyroid pulsations. It died in 

 the fourth week, anaemic and exhausted. A second case in a 7 

 year old bitch recovered in three months under treatment with 

 iodine. 



Roder gives the case of a cow with palpitations, abnormally 

 strong pulsations, thyroid hypertrophy and double intense ex- 

 ophthalmia. This persisted for four years. 



RACHITIS. RICKETS. 



Definition. Lesions and pathology ; gastro-intestinal disorder, hepatic, 

 splenic and renal congestion and hypertrophy, lessened blood salts, dilated 

 arteries, hy persemia of bone, deep red marrow, blue art icular cartilage, soft- 

 ening of epiphyseal cartilage and under the periosteum, with hyperplasia, 

 decrease of lime salts, bending of bone, loose periosteum ; sclerosis in re- 

 paired cases. Causes : appears as if infection, lack of lime salts in food, in- 

 constant, free phosphorus, glycero-phosphoric acid, lactic acid, oxalic, 

 acetic and formic acids, heredity, bad air, crowding, damp soils, cold, con- 

 finement, darkness, infection, toxic matters. Symptoms : unthrift, thin 

 neck, arched or hollow back, drooping pelvis, weariness, stifltness, recum- 

 bency, limbs not plumb, tender, swollen, puffed joints, enlarged epiphyses, 

 bent shafts, or spine, brittleness. Swine fed on potatoes or corn, " snnflEles", 

 breaking teeth, diarrhoea, bronchitis, skin eruptions, arthritis. Cattle, 

 epiphyseal swellings bow legs, crooked back. Dogs, bow legs. Goats 

 Birds, knotted thickening of bones, flexibility. Fever, colics, indigestion- 

 Lameness shifting, intermittent, relapsing. Paraplegia. Treatment, 

 hygienic, vigorous breeding animals, nutritious rations, rich in earthy salts, 

 well-balanced, from sound land, rich abundant milk without excess of fat, 

 avoid spoiled food, adapt cow's milk to foal or puppy, fresh air, sunshine. 

 damp soils, antacids, lime water, laxatives, bitters, phosphates, bone dust, 

 phosphorus. 



Definition. A con.stitutional disease of young aAimals, asso- 

 ciated with disorders of digestion, nutrition, assimilation, and 

 sanguification, and especially characterized by softening and dis- 

 tortion of the bones. 



