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



material described in the "Research on the Eucalypts," 

 p. 87, contained a little more dextro-rotatory pinene, owing 

 to its being collected at the time of the year when pinene 

 is most pronounced in the oils of this class, otherwise the 

 oils are almost identical. 



A portion of the crude oil was rectified by steam distil- 

 lation, as for commercial purposes. The product was 

 yellowish in tint, resembling in this respect oils rich in 

 eucalyptol of this class, as those of E. globulus, E. gonio- 

 calyx, etc. It had a good odour and consisted very largely 

 of eucalyptol. It had specilic gravity at 15° C. = 0*9203 ; 

 rotation a D ;= + 3'1°; and refractive index at 21° 0. = 1*4602. 



Eucalyptus laevopinea, R. T. B. 



"Silver Top Stringybark." 



Historical. — The first material (imperfect) of this species 



was obtained from the Gulf Road near Rylstone (R. T. 



Baker), and was thought then to be a form of E. obliqua, 



L. Her., Proc. Linn. Soc, N.S.W., 1896. 



In the same Proceedings and later in the same year, 

 Messrs. Deane and Maiden state, " they are unable to 

 place it either with E. macrorhyncha, F.v.M., or E. capi- 

 tellata, Sm. 



In " Notes on a trip to Mount Sea View " by J. H. 

 Maiden, Proc. Linn. Soc, N.S.W., 1898, appears the follow- 

 ing reference to this tree : — 



"E. macrorhyncha, F.v.M. Near the summit of Mount Sea 

 View there occurs a Stringybark with large fruits undoubtedly 

 belonging to this species. The fruits are similar to those collected 

 by Mr. R. T. Baker, Gulf Road, Rylstone, except that the rim is 

 a little more domed and the valves a little more exserted, probably 

 because the Sea View specimens are a little riper. In my opinion 

 Mr. Baker's specimens are now undoubtedly to be referred to E. 

 macrorhyncha, F.v.M., a point in regard to which Mr. Deane and 

 myself had some doubt." 



