Hilgard, E. W.: Alkali Lands, Irrigation and Drainage, etc. University of California, College of Agriculture, Appendix VII, Report for the year 1886. Sacramento, 1886.
—— Investigation of California Soils. Appendix I, Report of the Professor in Charge, etc. University of California, College of Agriculture. Sacramento, 1882.
—— The Rise of Alkali in the San Joaquin Valley. University of California, Agricultural Experimental Station, Berkeley, Cal. Bulletin No. 83.
—— Abnormal Deposits on Vine Leaves. In same. Bulletin No. 70.
—— Mysterious Death of Vines. Same. Bulletin No. 70.
—— Sulphuring of Vines. Same. Bulletin No. 56.
—— Irrigation, Drainage and Alkali. Bulletin No. 53.
—— Examination of Tule, Marsh and Alkali Lands. Bulletin No. 28.
Le Brun (or Bruyn) Corneille: Voyage au Levant, Delft, 1700. Mentions seedless raisins in Persia.
Lithgow, William: Adventures and Peregrinations. 1614.