406 Rumex Crispus — Yellow Dock. 
The epidermis is loose and thin, and easily separated. Numer- 
ous medullary rays extend from the pith into the cortical layer. 
Organic analysis of a root | inch diameter, and 10 inches in length. 
100 grs. gave the following results: 
Starch, 5-987 
Albumen, 1-431 
Caseiue, -226 
Dexti-ine or gum, ------ 2-024 
Exti-active matter, ----- 5-184 
This contains a trace of oxaHc acid, and con- 
siderable tannic ; very bitter and astringent. 
Fibre or lignin, ------ 14-228 
Per cent ash in fibre 1-998 } 
Strongly alkaline. \ 
Total dry matter, 29-080 
Water, ^ . . 70-320 
99-400 
The above calculated dry. 
Starch, - - 20-600 
Albumen, 4-982 
Caseiue, - -777 
Dextrine or gum, ------ 6-690 
Extractive matter, ----- 17*856 
Fibre or lignm, ------ 49-095 
. 100-000 
100 grs. of the root of another plant gave of 
Water, 79-363 
Dry matter, 20-637 
Ash,- ------- 1-321 
Organic matter, ------ 19-316 
Ash calculated dry, ----- 6-401 
Organic matter calculated diy, - - - 93-599 
100 grs. of the ash gave the following results: 
Carbonic acid, ------ 11*000 
Silicic acid, - - -500 
f Silicic acid, - - -060 
Lime, - - - - 4-220 
Phosphates 26-20 \ Magnesia, - - - 4-250 
I Phosphate of Iron, - -400 
\^ Phosphoric acid, - 17-380 
Lime, - 3-827 
Magnesia, 7-620 
Potash, ------- 9-723 
Soda, 18-480 
Sulpiiuric acid, ------ 4-502 
Chlorine, 3-898 
Organic acids, ------ 11-600 
97*460 
