1. In a number of cats, dogs, monkeys, and in a rabbit, the cervical lymph ducts were cannulated and protein solutions dropped into the nose, and the lymph was examined afterwards for the presence of the protein employed.
2. Egg albumin was found in the lymph in all cases with one exception. Horse serum was never detected. Serum albumin did not come through in the cats, but did in a rabbit.
3. With a 1 per cent solution of T-1824 in horse serum no dye appeared in the lymph. This is regarded as confirming Gregersen and Gibson's (2) view that T-1824 combines with the serum proteins.