Viaud. Le vertige stomacal et le caféisme. Tribune médicale, 2 ser., XXIX: 928–930.
Wallace. On the decrease in use of coffee as a beverage. Analyst, 1884, IX: 42–44. Also, Polyclinic, 1883–4, I: 169.
Wesselhoeft, W. On the effects of coffee and their remedy. Journal of Inebriety, 1909, XXXI: 176–182. Also, Boston Medical and Surgical Journal, 1909, CLX: 608–611.
Wiley, Harvey W. Our national beverages. Tea and Coffee Trade Journal, 1912, XXII, Supplement to no. 6, 33–38.
—— Temperance in tea and coffee drinking. Tea and Coffee Trade Journal, 1910, XIX: 273–274.
Wilhite, P.A. Coffee and its effects. Transactions of the South Carolina Medical Association, 1882, XXXII: 83–86.
Zobel. Reflexionen über kaffeeïnhaltige Genussmittel. Vierteljahrsschrift für die praktische Heilkunde, 1858, II: 105–136.
Of Caffein-Free Coffee
Bertrand, Gabriel. Sur les cafés sans caféine. Comptes rendus de l'Académie des Sciences, 1905. CXLI: 209–211. Also, Bulletin des Sciences Pharmacologiques, 1905, XII: 152.
Bordet, M. Sur un café rendu inoffensif par la décaféination. Bulletin général de Thérapeutique, 1910, CLIX: 770–773.