Chromntiti as "7/rm///c/r// Substance" 



327 



worker; and since there is nothing inherently improbable in 

 the results, it seems justifiable to take them as conclusive, 

 at least in main outline. The observations on the develop- 



Jg 



KHillti: 1.*. KHONTONIA I.Kl'C AS (A KITH TO \ X IC.KS) . 



c., cili;i. cor])., cortical plasma, end., cndoplasm. f(l., food, macr., 

 niacroniicleus. micr., niicronuclcus. tr., trichocysts. trch., tricho- 

 chroinidia. 



ment of the trichocysts that specially concern us now may 

 be stated in a short paragraph. 



The organs (trch. figure 15) originate in the macronu- 

 cleus (macr.) and migrate tli rough the nuclear membrane 



