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noticed, as for instance in tonsillitis, when the mind becomes very active, 

 with a great rush of thoughts, but without ability to hold them. After an 

 attack of acute illness there may be a "clear brain" with active thinking. 

 This can be explained by assuming that the brain was rested while the 

 body was sick, or that il was stimulated by the disease or sickness, or by 

 returning health, and now lias a new set of thoughts. 



Tuberculosis acts in many as a stimulant, producing especially cheer - 

 fulness and hopefulness, just the opposite from the next. 



Acute Dyspeptic Attacks, as after the proverbial lobster salad. Here 

 almost invariably the thoughts and the dreams are disagreeable, oppressive. 

 Often it is less a question of the kind of food than of conditions under 

 which the food is eaten. In the case of the lobster salad, the most favor- 

 able condition under which it is likely to produce disagreeable thoughts or 

 dreaming is, in the opinion of some, a midnight lunch after attending a 

 theater. 



Chronic Dyspepsia. This to most of us brings up thoughts of pes- 

 simism, the effects thus standing opposite to those of tuberculosis. As a 

 supposed classical example, Carlyle might be mentioned. 



Atmosphere, the Air of Places. Literary people speak of the influ- 

 ence of atmosphere, but this may not at all refer to air conditions. On 

 the other hand, physicians since the days of Hippocrates speak of the air 

 of places. From a study of the subject one might almost come to the con- 

 clusion that the locality, the environment, has as much influence on 

 thought stimulation as on the production of ill health and disease. 



War Times. In my chronological account are some data relating to 

 a friend whose regiment was called into camp on the breaking out of the 

 Spanish-American War. The event was a great thought stimulant to him, 

 especially when lying awake at night. 



Travel. Next in order comes a mass of data based on a year's travel 

 in Europe. The value of travel as a stimulant to the mind is recognized by 

 everybody. The following is taken from my notes relating to this period : 



"One day, at Heidelberg, I dropped into an inn for a bite to eat. I 

 was going to sit down before a long empty table, when I was informed 

 that it was a Stammtisch ; that meant I had to take a seat elsewhere. 

 While eating my modest meal, there was a rush of thoughts concerning 

 the influence of the Stammtisch on the life of German thinkers, especially 



