100 degrees, we extract the following results: Appearance of spiral Energy of obscure radiation Dark 1 Dark 6 Faint red 10 Dull red 25 Red 37 Full red. 62 Orange 89 Bright orange 144 Yellow 202 White 276 Intense white 440 Thus the vocation of the Voltaic battery is not as anything but the jury did not much more so. The difficulty.