The medical attendant anxious to enlist the good-will of the unpaid nurse may often be heard to say that the welfare of the patient depends largely upon her good offices. If this is so with the patient who can and does freely express complaints in respect of these "ministering angels", how much more necessary is it that sick animals, unable to voice their wrongs, should have in an attendant an individual at once faithful and assiduous in his duties. There is nothing more disheartening to the veterinary practitioner than to feel that he has heedless and incompetent persons to carry out his instructions; and such are the majority of persons to whom sick animals are entrusted. In a work dealing with the ailments of the horse it will therefore be well to consider a few of the conditions that make for recovery, and the means used in the treatment of the sick and lame.