The pH de termination of the mucosal homogenate in ampulla duodeni, duodenum proper and in the upper part of the jujenum in camelus dremoda rius demonestrated slight acidity and more or less constancy through out the mucosal wall of the three segments. The mucosal homogenate de monstrated the presence of alkaline phospha tase, lipase and amylase. The mean total ac tivity of alkaline phosp < strong>hatase per weight cen time ter square of mucosa was 25.72 Units in ampulla duodeni, 48.39 Unit in the duodenum and 47.45 Unit in the upper part of the juje num. For lipase, the activity was 0.43 Unit in the ampulla duddeni, 0.77 for the duodenum proper and 0.67 Unit for the upper part of the jujenum. Similar to lipase and alkaline phos phatase enzymes, the activity of the amylase in ampulla duodeni was half of the duodenum and upper part of the jujenum. It was found to be 23.87, 45.96 and 55.13 Units respectively.