: Normal values for 24 serum and 8 cerebral spinal fluid (CSF) chemical components were determined for the monkey (Macaca mulatta). Analyses were performed on serum from 10 males and 10 females, and sex-related differences in the levels of some of the constituents were evaluated. The serum levels of urea nitrogen, creatinine, allantoin, total protein, glutamic-pyruvic transaminase, lactic dehydrogenase, creatine phosphokinase, and amylase were significantly different between the sexes (p.05). Chemical analyses were performed on CSF from 18 males and 12 females. Significant sex-related differences in concentration were found for calcium, chloride and total protein in CSF.
