142 PROPER TIME FOR COLLECTING CERTAIN ROOTS. 
rifled with white of egg, filtered, edulcorated, and the fil- 
tered solution reduced to four oz., and when cold the specific 
gravity determined. 
Only the following roots have as yet been examined: — 
NAME OF THE ROOT. 
Quantity 
employed. 
Dried in the 
Mr, 
Quantity 
of Dried 
Root Ex- 
tracted. 
Spec. Grav. 
of the Clear 
Ext. Evap. 
to 3 oz. 
Rad. Taraxaci in Autumn 
oz. 
12 
3 
3 
z 
2 
52 
oz. 
2 
1.120 
" " Spring 
12 
2 
4 
12 
2 
1.095 
Rad. JBardaniae in Autumn 
12 
3 
2 
36 
2 
1.147 
" " Spring 
12 
2 


2 
1.062 
Rad. Saponariae in Autumn 
6 
2 

56 
1 
1.044 
" " Spring 
6 
1 
5 
3 
1 
1.032 
Rad. Cichorei in Autumn 
6 
1 
5 
39 
1 
1.080 
" " Spring 
6 
1 
2 
8 
1 
1.040 
The Chemist. 
