Note 95 — Chapter VII
Reading edition
Fraunhofer’s measure of illuminating power is as follows:—
At the22nd degree of the red0·032
"34th degree of the red0·094
"22nd degree of the orange0·640
"10th degree of the yellow1·000
"42nd degree of the yellow0·480
"2nd degree of the blue0·170
"16th degree of the indigo0·031
"43rd degree of the violet0·0056