ECENT studies with C14-labeled palmitic and pentadecanoic acids have shown R that, after their absorption, these fatty acids can be recovered almost quantitatively from intestinal or thoracic duct lymph (I, 2). Since there are indications in the literature that a short-chain fatty acid, such as butyric, does not, to any appreciable extent, make use of lymph (3), we have inquired into the specificity of the lacteal pathway for transport of absorbed fatty acids. The present investigation deals with the extent to which the even-carbon homologues from decanoic to my&tic acids and stearic acid can be recovered in intestinal lymph after their absorption.