TABLE X

Values of n and k for Sflicon Dioxide Glass Obtained from Various 
References'

eV	cm-i	A	n	k

	2000		6.199	0.99993 [17]	1.503 x 10-' [17]
	1952		6.351	0.99992	1.636
	1905		6.508	0.99992	1.781
	1860		6.665	0.99991	1.936 x 10-'
	1815		6.831	0.99991	6.300 x 10-6'
	1772		6.997	0.99991	6.904
	1730		7.166	0.99990	7.564
	1688		7.345	0.99990	8.298
	1648		7.523	0.99989	9.083
	1609		7.705	0.99989	9.941 X 10-6

(eontinued)