EUCAL YPTUS. 167 



the fingers, forming an ochrey-brown powder. The mass 

 of kino has not the brilliant appearance ot the kinos of 

 the ruby group, owing to this friability. 



In cold water it dissolves fairly readily and almost 

 entirely to a reddish-brown liquid. Its composition (deter- 

 mined November, 1888) is: 



Catechin and tannic acid 84 3 



Ligneous matter, etc 3 



Moisture 15 .2 



Ash 2 



IOO.OO 



Tannic acid determination (Lowenthal) 46 22 per cent. 



HOW TO PLANT EUCALYPTUS. 



The first thing to consider in planting Eucalyptus trees 

 is the seed. With the exception of only four or five spe- 

 cies seeds true to name are difficult to obtain. Conse- 

 quently when species are desired that are outside of the 

 ordinary demand it is best to have the seed collected here 

 from identified trees whenever the tree is locally repre- 

 sented. In this connection it should be borne in mind that 

 the seeds in the top of the ovary are nearly all fertile 

 while, as you go down, the ratio of fertile to sterile seeds 

 diminishes: The top seeds are first dropped, so in collect- 

 ing seed the fruit should be gathered just before it opens 

 and allowed to ripen up in sacks or boxes. 



The seed germinate most uniformly when soaked in 

 warm water for 24 hours. All the species from which 

 seed have been locally gathered in California have, as far 

 as reported to me, proved fertile. In Algiers, Eucalyptus 

 tetraptera, is the only one reported sterile. While the seed 



