ORGANIZATION OF SOLS 



II 



Fig. 2 



PARTICLE SIZES (PARTLY FROM STANLEY, 1938a, b) 



measuring 

 scale 



Mol. 



weight 



in 



I . Erythrocyte .... 

 z. Bacterium coli . . . 

 3 . Bacterium prodigiosum 



4. Treponema pallidum 



5 . Small-pox virus 



fj 6. Chicken plague virus . 



7. Megatherium bacteriophagus . 



8 .Yellow fever virus 



100 



m/x 



9. Gene, calcul. accord, to 

 Muller(i935) 



10. Tobacco mosaic virus. . . . 



1 1. Foot and mouth virus. . . . 



12. Glycogen, according to 

 HusEMANN and Ruska (1940) 



1 3 . Haemocyanin from Octopus . 



14. Smallest ultramicroscopically 

 visible gold particles, accord- 

 ingtoZsiGMONDY(i925) . 



15. Horse haemoglobin . . . . 



16. Ovalbumin (Svedberg 1930) 



17. Saccharose 



18. Hydrogen molecule . . . . 



2300- 10° 



300- lO" 



23- 10° 



4.3-10" 

 33-io« 



43- 10" 

 0.4- 10® 

 1.5- 10^ 



2.8- 10° 



2.7- 10° 



7500 



3000 



750 



200 



Length 



{mfi) 



175 



90 



38 

 22 

 20 



12.3 



10 



10 



6000 

 1000 



18000 



125 

 430 



64 



i.o 



