124 



PROTOPLASM 



Fig. 81. — (a) An oil-in-water emulsion; (6) a water-in-oil emulsion; (c) both 

 types in one sample, with one water globule (center) containing an oil-in-water 

 emulsion; (rf) a coarse water-in-oil emulsion, with the large water globules 

 containing small amounts of oil-in-water emulsions preparatory to going over 

 into the latter type; (e) a very coarse water-in-oil emulsion just before breaking or 

 reverting to the opposite type; (/) five emulsions in one (consisting of one 

 globule each) , starting with the smallest oil drop in the center, the emulsions are 

 OW, WO, OW, WO, OW. 



