THE APPLICATION OF SPECTRAL ANALYSIS TO PHARMACY. 137 
Tinct. Cinchona Co. —Yellow obscured by extension of green; all the spec¬ 
trum beyond line E absorbed.. 
Tinct. Cinnamomi. —From halfway beyond D to E darkened, all beyond E 
absorbed. 
Tinct. Cocci. —Violet only absorbed, the yellow supplanted by green. Two 
well-marked lines appear, a thin one at D and a broad one at E; a very beau¬ 
tiful spectrum. 
Tinct. Digitalis. —Extremely handsome spectrum, exhibiting a magnificent 
chlorophyll line at B, and a narrow but well-marked line at D. The yellow 
darkened, blue and violet absorbed. 
Tinct. Ferri Perchloridi. —All beyond E abruptly cut off. 
Tinct. Hyoscyami (biennial).—The violet and two-thirds the blue absorbed. 
The green darkened and extended into the yellow. This handsome spectrum is 
crossed by four very distinct lines. The first a very dark chlorophyll at B. The 
second just beyond D is narrow. The third is a much stronger one at E. The 
fourth is a very broad dark band at F at the commencement of the blue. 
Tinct. Hyoscyami (annual).—This spectrum is very different to the last, and 
cannot be mistaken for it. The chlorophyll line at B is not so decided; the 
second and third lines so weak as to be barely visible, and the fourth absent. 
Half the green is darkened, part of blue and all the violet absorbed. 
Tinct. Gentianx Co. —Like that of tinct. aurantii, with the exception that all 
the blue and violet are absorbed. 
Tinct. Iodi. —Impervious to light, except in a thin stratum. When diluted, 
the blue and violet are absorbed, and part of green much darkened. 
Tinct. Jalapse. —Last third of green and whole of blue and violet absorbed. 
Tinct. Krameria. —Yellow and green nearly absorbed, blue and violet 
quite so. 
Tinct. Lavand. co. —Yellow shaded by green, and all beyond F intensely 
absorbed. 
Tinct. Lacmi. —A beautiful spectrum. All absorbed beyond G. Two dis¬ 
tinct lines; a thick one between D and E and a thin one on E. 
Tinct. Lobelia. —Green and first half of blue darkened, the remaining blue 
and violet absorbed. 
Tinct. Lobel. JEth. —Magnificent spectrum. Very strong chlorophyll line; a 
fine one at D., and two very strong ones at E and F. 
Tinct. Lupuli. —Green darkened ; blue and violet absorbed. 
Tinct. Nuc. Vom. —Similar to tinct. aurantii. 
Tinct. Opii. —Red advanced over yellow, green darkened, blue and violet 
absorbed. 
Tinct. Camph. co. —Violet absorbed. 
Tinct. Quinia.— Green extended over yellow, blue and violet absorbed. 
Tinct. Rhei. —Green contracted and darkened, blue and violet absorbed. 
Tinct. Senna. —Only red transmitted, the rest being absorbed. 
Tinct. Stramonii. —Violet and half the blue absorbed. 
Tinct. Sumbul. —Violet and blue absorbed. 
Tinct. Ferri Acetatis. —Green, blue, and violet abruptly cut off by absorption. 
Sol. Cupid Ammon. Sulph. —Red and violet only transmitted. 
Dec. Aloes Co.—Only red transmitted. When diluted, three times green, 
blue, and violet absorbed. 
Ext. Bela liquid. —Green very much darkened. Bine and violet absorbed. 
Ext. Cinchona flav. liq.— When much diluted, only the red is transmitted, all 
the rest being absorbed. 
Ext. Cinch, pallid, liq. —When much diluted, red and orange transmitted, all 
the rest absorbed. 
Liq. Arsenicalis. —Yellow, green, blue, and violet abruptly absorbed. 
