682 



GENETIC TYPE AND THE EXDOCRINES 



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Text-figure 121. 1. Graphic record of the normal vigorous reactions of dog 869 

 to Met. 120 followed by shock. Note the frequency of the head movements (top 

 line) and reaction leg movements (third line). 2. Graphic record of the reactions 

 of the same animal immediately following partial removal of the thyroid. 

 Note here the almost complete absence of head and leg movements under exactly 

 the same stimulation conditions. 



