James Beard's Cuban Bread

Yield:	2 Loaves
Categories:	Easy, Breads

1 1/2	pk	Active dry yeast
1	tb	Granulated sugar
2	c	Warm water (100-115 deg.)
1	tb	Salt
5	c	All-purpose or hard wheat flour plus 1 cup if necess.
3	tb	Yellow cornmeal
1	tb	Egg white,mixed with 1Tbl. cold water