Pulse and Respiration. 



123 



part of the table, it can be seen that the respiration was longer in the 

 post-tetanus division of the record, the average for period 1 being 3.7 

 seconds as compared with 2.8 seconds for pre-tetanus; the total average 

 for periods 2 to 6 during post-tetanus was 3.2 seconds as compared with 

 2.8 seconds for the pre-tetanus division. The curves were not such 

 as could be measured for depth of respiration. In the alcohol section 

 of the table (periods 2 to 6 and average), it is again shown that the 

 respiration is longer in the post-tetanus division, but the difference is 

 not so large as with the normal values. As with the word-reaction, 

 finger-movement, and post-tetanus pulse, there is a difference in the 

 initial level of the respiration on the two groups of days, showing a 

 shorter normal respiration on the alcohol days (see period 1) ; this limits 

 our direct comparison of averages in other periods. The signs for the 

 differences are about equally divided between plus and minus. The 

 effect of alcohol in terms of per cent differences seems to be, in general, 



Table 24. — Length of respiration in pre-tetanus and post-tetanus periods. 

 [Values given in seconds.] 



