128 FUNDAMENTALS OF S I' BM I C R OSCOP I C MORPHOLOGY 



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Fig. 86. Electron micrographs of gels, a) Gel of V2O3, 40,000 : 1 (from FREY-\X'YSSLiNGand 

 MuHLETHALER, 1 944). Z)) Cellulosc Cell wall of the alga ijo/rogyra, 19,000:1 (phot. A. Vogel). 

 f) Chitinous cell wall of the fungus Phyconiyces, 12,000:1 (from Frey-Wyssling and 

 MiJHLETHALER, 1950). (7)Tunicin of the mantle of Cioiia, 16,000: i (from Frey-Wyssling 



and Frey, 1950). 



