It is fitting that veterinarians should be concerned about the latest findings and ideas in animal nutrition. By the same token, it is important that the animal nutritionist know something of the latest ideas on disease and disease control. This is a day of specialization. It is practically impossible for one man to be an authority on both animal disease and animal nutrition. This does not mean, however, that an authority in one of these fields should not learn what he can of the other. The veterinarian and the feed man have essentially the same goal-to make the farmer more money by use of their services, their products or both.