2i:5 



These dyes are readily soluble in water, and the solutions are 

 made by simply dissolving the dye in water, the proportion being 

 about i/^ ounce of dye to i pint of water. This solution can be 

 diluted as much as ten times and still be effective. When the 

 desired effect has been produced, which is usually in an hour or less, 

 the flowers should be transferred to water. The solutions will keep 

 for some days, and a pint of solution will color a large number 

 of flowers. 



While the artificial coloring of flowers in the manner described 

 is of more or less interest from the scientific point of view, it has 

 also a practical application. In decorative schemes where a par- 

 ticular color is selected, this method could be used for producing 

 flowers all of one color. Or in some instances, where the demand 

 for flowers of a certain color is greater than the supply, artifici- 

 ally colored flowers could be produced from white ones. Then 

 again in the production of novelties, as of green carnations and 

 green roses, the method can be utilized. The color produced by 

 Naphtol Black B is a delicate gray or grayish-black, and it has 

 been suggested that roses and carnations so colored would furnish 

 appropriate mourning flowers. Another use of these dyes is in the 

 coloring of wild flowers for decorative purposes. For example, 

 wild carrot when colored with the blue dye gives a beautiful 

 effect, being suggestive of a head of small forget-me-nots. 



Finally it should be stated that the odor of flowers is not affected 

 by this treatment, and that they keep as well as cut flowers 

 ordinarily do. The colors are furthermore, permanent, and when 

 the flowers are preserved in the dried condition, as is sometimes 

 done with hydrangeas, a color can be selected according to the 

 fancy, as blue, green, yellow, red, and so on. 



Pini.ADELrillA COLLEGK UF PHAR.MACY. 



A KFA' TO THE AGARICEAE OF TEMPER.\TE 

 NORTH AMERICA 



BV WlLI.I.'.M .\. iMUKKll.I. 



The Agariceae arc not ordinar)- gill-fungi, but are a subfamily 

 of the Polyporaceae with furrowed hymenium. They differ from 



