108 



MACROMOLECULAR COMPLEXES 



NUMBER OF RINGS 



Fig. 9. (a) Periodic rings of chloroplastin prepared as in Fig. 8b (XlOO). 

 (b) Chloroplastin rings scanned at 675 m/x with the microspectrophotometer, 

 showing that chlorophyll is located within the ring structures. 



each ring. (Fig. 9). The chlorophvll complex in digitonin there- 

 fore behaves in a fashion similar to salts crystallizing out from 

 colloids, gels, and proteins, and to the Liesegang phenomenon. 



Now let us turn to some other experimental studies on the 

 properties of liquid crystals. Liquid crystals generally exist in either 

 the smectic or the nematic paracrystalline state. The more highly 



