CAREY: GROSS STRUCTURE OF AN AGAR GEL 179 
perhaps unsafe to make a direct comparison, as Molisch did not 
work with agar. 
Fic. 2. A 2.5 per cent agar gel after drying at about 43° C. and soaking in water, 
x 57: 
There seems to be a similarity between the effect of rapid 
dehydration due to freezing and rapid drying at higher tempera- 
tures and the structure of the gel. In both cases the water is 
