There has been only one report1 in the American literature of dermatitis resulting from mesquite wood. According to that report: "The mesquite tree (Prosopis juliflora) belongs to the family Leguminosae, or pod-bearing trees. There are seventeen genera and over thirty species of pod bearers native to North America, the best known of which are the various species of locust trees. The mesquite is found in arid and semiarid regions, ranging from Texas to southern California and north to Colorado and Utah.
REPORT OF A CASE
R. S. W., a white man aged 28, a farmer, gave a history of having a generalized dermatitis which occurred only during the winter months, appearing with cool weather in the fall of 1929, 1930 and 1931 and improving rapidly in the spring. He remained free of the dermatitis for eight years, but a recurrence developed in 1939.The present attack began in the