NOTES. 103 



hues, such as the Parellus in France, Omphalodes in Ireland, 

 and Deustus in Sweden, &c. The first of these mosses pro- 

 duces in the London Market, the price of ^V20, or sometimes 

 even J^2W per ton, and is imported in considerable quantities : 

 the other mosses are of inferior prices, but a diiFerent color is 

 produced from each : and not only is a different color produced 

 from each kind, but the same kind, by exposure to different pro- 

 cesses, will tinge silk, wool, &c. of many different hues ; and 

 thus, this neglected family of plants, is almost a new field for 

 such Botanists as are devoted to those parts of their study, which 

 enable them either to reply to their enemies' question of Cui 

 Bono? or to delight themselves with the bright and varied colors 

 which nature yields. Illustrative of the diversity of tints afford- 

 ed by the same substance under a variety of circumstances, a 

 pleasing experiment may be made, in which two differently co- 

 lored petals of flowers aflford eight other colors, by being rubbed 

 upon four different pieces of white paper. The flowers must be 

 the Rose and the Scarlet Lychinis, and the first paper impreg- 

 nated with Green Copperas, the second with Soda (subcarbonate,) 

 the third with Tartaric Acid, and the fourth without any impreg- 

 nation will change the color of the flower, that of the Rose, for 

 instance, to a blue. Rootsey. 



Among the Palmfe is placed the Cocus Butyracea, which yields 

 what is called Palm oil. This oil is brought to us from the West 

 Indies, and Africa, is about the consistence of an ointment, and 

 of an orange color. By long keeping it loses its high color, and 

 becomes 'white, when it ought to be rejected as unfit for use. 



Encifc. Brit. 



