TABLE 8— Concluded 



MINUTES IN HCl 



MORE CARBON DIOXIDE 



HCl 



Water 



Part II. Showing results of the biometer tests made within two minutes after 



reversal 



TABLE 9 



Shounng the effect on carbon dioxide production of treating positive nymphs ivith 



N /25 hydrochloric acid until they became negative 



TABLE 10 



.Showing the relative carbon dioxide production of negative nymphs made posi'ive by 

 treatment with N/25 hydrochloric acid, compared with those similarly treated 

 hut not reversed 



446 



