Hollingworth, H. L., & Poffenberger, A. T. (1920). Drugs and Stimulants. In H. L. Hollingworth & A. T. Poffenberger, Applied psychology (pp. 161-184). New York, NY, US: D Appleton & Company.
http://dx.doi.org/10.1037/11079-009
The real effects of drugs and stimulants upon human activity must be determined from the most careful and scientific procedure as opposed to the unchecked opinion and prejudice which are responsible for the common popular impressions. There is no field of psychological investigation more difficult and involved than this one of the effects of drugs and stimulants. Our discussion will cover the effect of only the more common drugs and stimulants, such as are real factors in the problem of personal efficiency. They will be considered in the following four groups: (1) tobacco, especially when smoked; (2) alcohol, in the various forms in which it is commonly taken; (3) caffeine, which is the drug appearing in coffee, tea and some soda fountain drinks; and (4) such less common drugs as cocaine, strychnine, morphine, etc. (PsycINFO Database Record (c) 2016 APA, all rights reserved)