S. RANZI 



303 



AC 



0--.'- 



. 1 1 1 1 i ?-'*-? 



10 20 30 40 50 60 70 80 90 C 



Fig. 12. Salting out graphs plotted as in Fig. 11 for euglobulin a + b 

 diluted 1:1 with IM KCl (control) or with IM KCl + IM LiCl (1:1) or 

 with IM KSCN. As in Fig. 10, LiCl-treated proteins precipitate at lower 

 ammonium sulfate concentrations, KSCN-treated proteins precipitate at 

 higher ammonium sulfate concentrations. (From Ranzi, 1955.) 



0.45-1 



0.40 



0.35-1 



0.15 



0.10- 



0.05 

 0.20- 



/' 



actom. 



SCN 



-°^i 



Li 



/ 



0.10 

 0.05 



euglob. a + b 



°SCN 



""I 1 — 



0.005 0.01 



0.05 0.1 0.2 0.5 mol 



Fig. 13. Specific viscosity of rabbit actomyosin (actom.) solutions and 

 of euglobulin a + b. On the abscissa is plotted the final molar concentration 

 of the added salts (LiCl or KSCN). Ionic strength is I = 1.0 in all samples. 

 LiCl induces an increase in viscosity, KSCN induces a decrease in viscosity. 

 The sketches of the embryos (normal, vegetalized, and animalized) are 

 located according to the active concentration in modifying the development. 

 (From Ranzi, 1955.) 



