On the morning of Dec. 23, 1940, the author was summoned to see a four year old Holstein cow. The owner said she had become ill the previous day.

On Nov. 16, 1940, a black seven-year- old mare was brought to the Stange Memorial Clinic with a history of lameness and enlargement of the fetlock and pastern joints of the right posterior limb.

The fattening of lambs with feeds grown on Colorado's irrigated farms has become an important industry since its start in 1889' as an emergency measure toward furnishing a market for the abundance of alfalfa hay produced. At the present time, in her four principal lamb feeding sections, Colorado fattens normally 32 percent of the total sheep and lambs fattened during the winter feeding season in the entire United States.