373 



[Group III is divided into two sub-groups, Classes (a) and (6). These, from 

 the chemical point of view, are classiiied on the basis of the cineol present exceeding 

 40 per cent, (see Group II), but under 55 per cent., or over 55 per cent. The. figure 55 

 is chosen because that is the standard fixed by the British Pharmacopoeia. 

 (Incidentally it may be remarked that the U.S. Pharmacopoeia demands 70 per cent, 

 of cineol.) 



So that the classification of the species enumerated in Group III (a) and (b) is 

 limited by the requirements of certain Pharmacopoeias. This is utilitarian, but it is 

 not scientific. 



Group III (Class (a). — This Class includes species that I am unable to place undei 

 any natural groups known to me ; for example, we have Red Box, Woolly Butt, a large 

 Mallee. a Blue Gum. a Forest Mahogany, a White Gum, together with miscellaneous 

 other eastern species. From Western Australia we have the Salmon Gum, and two 

 other species belonging to the Mallee type. They embrace trees from various climatic 

 regions, of different sizes, habits, barks, and timbers.] 



Group III. — Class (b). In this Group are placed the following Eucalypts, 

 yielding an oil consisting principally of cineol and pinene, in which the cineol exceeds 

 55 per cent. Phellandrene and aromadendral are absent. 



[Note.— 55 per cent, of cineol is the standard fixed by the British Pharmacopoeia. 

 The American Pharmacopoeia demands 70 per cent, cineol. See also Group IV, 

 Class (a).] 



71. E. sideroxylon* 82. E. Muelleri. 



72. E. squamosa* 83. E. longicornis. 



73. E. Smithii* 84. E. Perriniana. 



74. E. Bridgesiana* 85. E. costata. 



75. E. populi folia.* 86. E. maculosa* 



76. E. Parramattensis. 87. E. goniocalyx.* 



77. E. parvifolia. 88. E. globulus.* 



78. E. pumila. 89. E. Nepeanensis (Bosistoana). 



79. E. pulverulenta* 90. E. cordata. 



80. E. Morrisii.* 91. E. Australiana(radiata). 



81. E. Moorei. 



[Group III, Class (b). — A very incongruous group of species according to any 

 test I am able to apply.] 



[Groups IV- VII are based on a 40 per cent, standard of cineol, with or without 

 phellandrene and pinene.] 



* Included in Group fll, Class (a) in 1st Edition. 



