RICHARD L. WOOD 63 



specific enzyme digestion. Analysis of appropriately treated material 

 with high resolution electron microscopy may provide further 

 information not only on the mechanism of intercellular attachment 

 but also on the molecular structure of cell membranes themselves. 



Fig. 8. Interepithelial connection across mesoglea of Pelmatohydra. The 

 epidermal process (top) abuts against a gastrodermal muscle fiber. Note the 

 collapse of the normal intercellular separation at the region of contact 

 (arrow). ME, mesoglea. 13,000X. 



