202 Scientific Proceedings, Royal Dublin Society. 
VIOLET RA YS—continued. 
Wave- | Element and Wave- | Element and Wave- Element and 
Length. Intensity. Length. Intensity. Length. Intensity. 
4163°8 Ti 20 4132-1 V 16 4100°9 Pr 20 
4163°8 Nb 7 4131:0 Si 4 4099-9 Vv 16 
4163°8 Ta 8 4130°9 Ba 10 4099°7 La 10 
4162°0 Sr 20 4130°9 Pr 6 4098-5 Pra 
4161°4 Zr 10 4129°9 Eu 100 4098-0 Ru 6 
4158°6 0) 4129°2 Pr 6 4097°7 Rh 6 
4156-4 Zr 10 4129-1 Rh 8 4097°5 N 2 
4156°3 Nd 10 4128-2 Si 4 4097°0 le 7 
4155°6 Ur 3 4128-2 V 16 4095°6 V 12 
4154-5 Rh 6 4127-1 Cd 6 4095:0 Cd 7 
4153°6 O 6 4124-9 Un 73 4094°3 Tm 3 
4152°7 aes, 4124°3 O 5 4090:9 La 6 
4162-1 La 10 4124-0 Ta 10 4090°7 V 16 
4152:1 Ce 9 4124°0 Nilo 7 4090-7 Zr 6 
4151°9 ING eo 4124-0 Ce 5 4090°3 Ur 4 
415071 Ce 10 4123°4 La 30 4087°5 Pd 8 
4149-4 Zr 20 4122-0 Bi 3 4087-0 Pro 
4149-1 K 6 4121°9 Rh 6 4086°8 La 20 
4148°5 Ie if 4121°7 Bi 8 4084:°3 Au 4 
4146-7 lee 4121°5 Co 8 4083°8 Mn 6 
4146:0 N 4 4121-0 He 3 4083°5 Pr 10 
4145°9 Ru 6 4120°9 Hg 8 4083-4 Ce 5 
4145°2 Ce 7 4120:°0 Ce 7 4083°1 Mn 6 
41443 Ru 8 4119°5 O D) 4083-0 Rh 8 
4144:0 Fe 7 4119°3 Nb 7 4082-1 Pr 10 
4143°9 He 2 4118°9 re G 4081°4 Li Ge 
4143°7 Mo 6 4118-9 Co 8 4081-2 1Bp  G 
4143°3 Nd 8 4118°6 Pr 15 4080°8 Ru 8 
4143-2 Pr 20 41183 Ce 6 4080°8 Ur 3 
4143°1 Er 5 4118°3 V 10 4080-6 V 20 
4142°6 Ce 5 4116°9 Dh 4079°9 Pr 8 
4141°9 La 10 4116°7 V 14 4079-9 Ta 12 
4141-4 Ur 3 4116°3 Urs 4079-9 Nb 10 
4141°3 Pr 10 4116°2 xX ri 4079-4 Bi 10 
4140-4 Bre6 4115°5 Ce 5 4078-9 xX 10 
4139-9 Nb 6 4115°3 V 16 4078-1 Hg 10 
4139°9 Ta 8 4115°3 Hg 8 4077-9 Sr 100 
4137°8 Ce 9 4112°9 Ru 6 4077°5 La 15 
4137°8 Ta 7 4112:2 Os 8 407671 O 9 
4139-9 Os 10 4109°9 V i 4074:5 Wo 6 
4135'8 Br 56 4109°6 Nad 8 4072°8 five 8 
4135°5 Nd 7 4109°3 Nd 6 4072°4 O 9 
4135°4 Rh 8 4106°9 Tm 38 4071°9 Fe 10 
4135°2 Yb 10 4105°1 Ce 4 4070°1 Iie @ 
4134°7 K 6 4105°1 O 9) 4070°0 W 6 
4134°6 Vv 14 4102°9 we 4070-0 O 9 
4134°0 Ce 10 4102°5 Yt 6 4066°9 Os 10 
4133°8 N 6 4102°3 V 10 4065-2 Vee? 
4133°7 Pr 6 4101°8 H 10 [No. 12, | Gold.] 
4133°5 Nd 56 4101°9 In 50x 4065-2 Au 15 
4133-0 O 5 4101-1 Ce 5 4064°3 fhe (i 
4132°7 Gl 2 4101-1 Ta 10 4063°8 Fe 10 
4132°4 Li 6 4101-1 Nb 9 4063:0 Pr 10 
4132°2 Fe 8 4100°9 Nd 5 4062°9 Cu 7 
