EUCAL YPTUS. 281 



The accompanying plates of these two flowers can be 

 studied. What I have recently noted in groves and plan- 

 tations of rostrata is a tendency in the bud caps to vary 

 toward the tereticornis form. The similarity of the oils 

 suggests the possible propriety of reducing tereticornis to a 

 form of rostrata. 



Mr. Joseph Bosisto, one of the first and largest pro- 

 ducers of Eucalyptus oil, of Victoria, Australia, gives the 

 following as his experience in the yield of Eucalyptus oils 

 from the various species. 



From 1000 Ibs. fresh leaves with their stalklets and 

 branchlets. 



Eucalyptus viminalis. 7 oz. 



melliodora , 7 " 



rostrata 15 " 



" obliqua 80 " 



globulus 120 " 



" goniocalyx 150 " 



leucoxylon 160 " 



olepsa (mixed with .other species 



of mallee scrub) 200 " 



amygdalina 500 " 



Mr. Bosisto 's leucoxylon is probably the present sider- 

 oxylon. Otherwise the marked differences are in Eucalyp- 

 tus amygdalina, in which he doubles our highest yield ; in 

 Eucalyptus obliqua which he also doubles ; and in Eucalyp- 

 tus rostrata where he gets 15 oz. to our 55.54 oz., or about 

 one-fourth of our yield. Such differences can not be plaus- 

 ibly attributed to differences in the season of the year when 

 the foliage was gathered or to the soil or situation of the 

 trees tried, although these points would doubtless become 

 appreciable to some extent after study. Just indeed as 

 oranges show differences in the yield and character of the 

 fruit according to the condition and climate to which the 



