ON BICOLLOIDS AND CELL MASSES. 



27 



TABLE X. 

 Hydration of Small ]\L-\ize Roots in Various Solutions at 15° C. 



0,01 M. 



NaCl 10 



Balanced solution 18 



CaCl, 20 



HCl 30 



KCl 20 



Water 10 



length were cut off, placed in trios in glass dishes, covered with a 

 triangular sheet of glass from which bearings were taken by auxo- 

 graphs in a room at 15° C. The swellings in percentages of orig- 

 inal thickness were as in Table XI. 



TABLE XL 



The series at o.oi M was HCl, NaCl, KCl = balanced solution, 

 sea-water, water. In the more attenuated solutions the series was 

 HCl, NaCl, CaClo, KCl, sea-water, water, balanced solution, only 

 the last named producing a hydration greater than in water. The 

 series is suggestive of the action of a dominantly pentosan bio- 

 colloid. 



Some plants of Fragai'ia (strawberry) which were growing in 

 an injuriously saline soil were transferred to a sand bed and roots 

 grown in both sub-strata were available for testing. The differences 

 which might be induced by these divergent factors are well illus- 

 trated by the measurements given in Table XII. 



TABLE XH. 



Grown in Sand. Grown in Soil. 



NaCI o.oiM 50 ID 



Balanced solution o.ouU 45 5 



HCl o.oiA^ 15 8 



Sea-water o.oiM 20 5 



Water 30 10 



