342 
. " On the crystalline camphor of Eucalyptus oil (Eudesmol) and the 
natural formation of Eucalyptol." Proc. Roy. Soc. N.S.W., xxxiii, 86. A chemical 
investigation of this new substance from Eucalyptus oils. 
Qildemtister, E., and Hoffmann, Fr. " Die iEtherischen Oele." 8vo, p. 919; 
Berlin, 1899. Also the English version : 
1900. " The Volatile Oils," by E. Gildemeister and Fr. Hoffmann, under the 
auspices of Schimmel * Co. Translation by Edward Kremers (Milwaukee, U.S.A., 
1900, of above). Pages 524-541 are taken up with Eucalyptus oils. They are divided 
into five groups : 
First group. Cineol (Eucalyptol) containing oils E. globulus (quantitative 
determination of Cineol in Eucalyptus oils). E. odorata, E. cneorifolia, E. okosa, 
E. dumosa, E. amygdalina, E. rostrata, E. populifolia, E. corymbosa, E. resinifera, 
E. Baileyana, E. microcorys, E. Risdoni, E. leucoxylon, E. hemiphloia, E. crebra, 
E. mncrorrhyncha, E. capitellata, E. eugenioides, E. obliqua, E. punctata, E. loxophleba 
(ftecunda), E. dextropinea, E. Icevopinea, E. Smithii. 
Second group. Citronellal-containing oils E. tnaculata, E. citriodora, E. deaibala, 
E. Planchoniana. 
Third group. Citral-containing oils E. Staigeriaiw. 
Fourth group. Oils with a peppermint-like odour E. Tuemastoma, E. piperitat 
Fifth group. Oils less known and of indefinite odour E. diversicolor, E. fissilis, 
E. goniocalyx, E. gracilis, E. Lehmanni, E. longifolia, E. occidentalis, E. pauciflora 
(coriacea), E. Stuartiana, E. tereticornis, E. tessellaris, E. Dawsoni, E. campkora. 
Smith, H. G. " On the Amyl-ester of Eudesmic Acid occurring in Eucalyptus 
Oils." Proc. Roy. Soc. N.S.W;, xxxiv, 72. Describes a new organic acid and indicates 
the origin of the amyl alcohol found in these oils. 
" On the constituent of Peppermint Odour occurring in many Eucalyptus Oils. 
Part 1." Proc. Roy. Soc. N.S.W., xxxiv, 136. Describes the isolation and preliminary 
chemical investigation of this constituent, which has since been named Piperitone. 
" Oh a Eucalyptus Oil containing 60 per cent, of Geranyl-acetate." Proc. Roy. 
*: N.S.W., xxxiV, 142. Describes the occurrence of this ester in quantity in the oil 
of Eucalyptus Macarthuri Deane and Maiden. This is a tree of great promise as an 
oil-yielding species. 
" On a new Aromatic Aldehyde occurring in Eucalyptus Oils." Proc. Roy. Soc. 
N.S.W., xxxiv, 286. Describes a new Aldehyde, here named Aromadendral. This 
substance occurs in many of these oils, and was previously supposed to be Cumin- 
aldehyde. This aldehyde often shows considerable Ia3vo-rotation. 
1901. Smith, H, G., and Baker, R. T. "On the relation between leaf venation 
and the presence of certain chemical constituents in the Oils of the Eucaiypts." Proc. 
Ro>/. Sor. N.S.W., xxxv, 116. A relationship is here shown to exist between certain 
botanical characters and chemical constituents of the3<? trees, indicating contem- 
poraneous alteration as the species evolved. 
