276 R. T. BAKER AND HENRY G. SMITH. 



of the second —44°; of the third -32*9°; with the fourth 

 light did not pass. The refractive index at 18° 0. of the 

 first fraction = 1*4819; of the second = 1*4839; of the 

 third = 1*4862; of the fourth = 1*4968. 



The nitrite was prepared with the phellandrene, and was 

 separated into two forms, one melting at 112 - 113° O. and 

 the other melting at 105° C. 



In view of the prominence recently acquired by the 

 phellandrene Eucalyptus oils in the separation of metallic 

 sulphides from ores by the flotation process, this species, 

 as stated above, has value as an oil producing tree. The 

 yield, however, is much lower than with such species as 

 E. dives or E. amygdalina. At present we do not know of 

 any other species growing in the New England District of 

 New South Wales from which a greater yield of phellan- 

 drene oil can be obtained. 



Eucalyptus Bridgesiana, R. T. B. 

 '•White Peppermint." 

 Historical. — This was specifically described in the Pro- 

 ceedings of the Linn. Soc, N.S.W., in 1898 by one of us. 



Remarks. — Since this species was established further 

 material has been obtained from many parts of New South 

 Wales, and its range even extended to South Australia. All 

 this additional evidence goes to prove the stability of the 

 species and further justifies the contention that it is quite 

 distinct from the "Apple " of Victoria upon which E. 

 Stuartiana was founded by Baron von Mueller, as main- 

 tained by Dr. Howitt and J. G. Luehmann. Vide also remarks 

 under E. Bridgesiana, " Eucalypts and their Essential 

 Oils," p. 86. 



The fruits preserve a constancy of shape, but vary in 

 size, the largest fruited form being at Woolbrook (Tam- 

 worth). 



