Chemistry and Physics. 127 
10. To the succession of: colors To the whole series of colors 
‘or wave lengths from be- ie B to A belongs, notwithstand- 
longs an infinite number of direc- the different wave lengths, but 
Hons of vibration jaclioed from 0° a apr direction of vibration, 
0 90°. 
(3) Combination of the observations and conclusions in III, 1, and II iS. 
The same direction of vi- The same direction of vibration 
behtiog j is ie adacial with the same is ceinlisked with the same tone of 
tone of color or the same wave color, only perpendicular and par- 
edith, allel to the axis. In all other di- 
Wy 12. In the direction of the axis In - direction of the axis we 
re ‘we do ‘not see the color B because do not see the color B rien 
| the direction of vibration belonging the vit belonging to it ta 
ia to this color has a longitudinal po- place in all azimuths Rarsaciiculae 
sition, to the axis. 
ae The ¢ constant (or et The constant tones of color A 
tones of color A and B are con- and B are connected with vibra- 
hected with ee B in this tions, B perpendicular to the axis, 
direction | a the axis, A perpen- A pela to it, perpendicular to it, 
Hh dicular to i and making all intermediate angles 
coe it, 
14. Tn the direction of the axis In the direction of the axis we 
ection perpendicular to the axis tion perpendicular to the axis w 
e the e color A by see the same color A by itera r 
"pariengjedlag to the patallel to the axis. we 
15, Vibrations perpendicular to Vibrations eA ete a vé - 
the axis take = only for the axis take mend or A, Ba 
ra. termediate 
17. for the color A the vibra 
ee place only perpetilieulas 
icular t 
Srlong the axis, and in Z azine 
of the principal sectio 
Mixed colors occur without @ a 
change in the direction of ¥ 
tion. 
