Cited passages:
p. 676, Experimental: Spinco
Model E and recording microdensitometer;
p. 675, Figure
4: peak
position and baseline; pp. 672–673, Figures
1–
2;
p. 675, Figure
4 density references and microdensitometer baseline;
p. 676, Experimental: Spinco
Model E and
ultraviolet photographs.