CONTENTS. 



Page. 



Introduction 7 



Subject selected for the repetition of the measurements 10 



Experience of Subject VI 12 



General experimental conditions 15 



Amount of alcohol employed 19 



General effects of the alcohol 20 



Measurements employed and their sequence 23 



Statistical method of presentation of results 29 



Data obtained in the repetition measurements 36 



Patellar reflex 37 



Protective lid reflex 48 



Eye reaction to peripherally appearing stimuli 59 



Reaction time in reading isolated words 62 



Memory 67 



Sensory threshold for faradic stimulation 74 



Eye movements 79 



Finger movements 84 



Pulse and respiration 92 



Conclusions • 125 



Appendix I. — Data concerning the use of alcoholic beverages outside of the psycho- 

 logical laboratory by the subjects of Dodge and Benedict 135 



Appendix II.— The general effects of alcohol, doses A and B, experienced by the 



subjects of Dodge and Benedict's experiments 138 



Appendix III. — Observations on the averages of data for normal and alcohol days 



presented by Dodge and Benedict 140 



Appendix IV. — Observations on the association pulse data of Dodge and Benedict ... 143 



ILLUSTRATIONS. 



Fig. 1. Patellar-reflex records from 30 and 50 gram stimuli 44 



2. Effect of alcohol on latency of the patellar reflex with two intensities of 



stimulation ; • 46 



3. Effect of alcohol on amplitude of the patellar reflex with two intensities of 



stimulation 46 



4. Effect of alcohol on latency of the lid reflex 53 



5. Effect of alcohol on ampbtude of the lid reflex 53 



6. Specimen records of lid reflex of Subject VI 54 



7. Typical record of memory measurement for Subject VI 68 



8. Typical eye-movement records of Subject VI reproduced unretouched from 



both series of experiments • 80 



9. Average number of finger oscillations in four successive 2-second intervals 



for each period on normal and alcohol days 88 



10. Differences for finger oscillations in 2, 4, 6, and 8 second intervals for each 



period after the control and alcohol doses 89 



11. Pulse and finger-movement records 96 



12. General averages for pulse rate during pre-tetanus, tetanus, and post- 



tetanus periods on three normal and three alcohol days, after the control 



or alcohol dose 191 



13. Average duration of pulse cycles on three normal and three alcohol days 



during pre-tetanus, tetanus, and post-tetanus periods after the control or 



alcohol dose 193 



14. Duration of pulse cycles in first, second, and third periods on normal and 



alcohol days in pre-tetanus, tetanus, and post-tetanus periods 104 



15. Average duration of pulse cycles under experimental conditions 1 to 7 on 



normal and alcohol days, as compared with pulse duration during word 



reactions (5 and 6) ^° 



4 



