390 
Notes . 
[May, 
complained of a peculiar feeling of constriction in her nose, ac- 
companied by a “ nasty smell,” nausea, and loss of appetite, and 
was unable to discover the cause. The symptoms had been felt 
since sleeping in a certain room, which she had done for two 
months. Mr. Smith analysed the paper, and found 0*35 grm. 
As 2 0 3 per square foot ; but that scarcely represents the total 
amount, because the paper was wetted in order to remove it, and 
the greater proportion of the bright green flowers washed off. 
There was very little copper present. The lady’s husband was 
net affeCted in the slightest degree. 
Writing to the “Chemical News” on the analysis of Australian 
Eucalypti , Mr. R. D. Adams, of Sydney, N.S.W., says that the 
celebrated Eucalyptus globulus is by no means the richest in the 
essential oil which gives the peculiar sanitary value to this class 
of trees, although it is the most “ taking ” in its earlier stages, 
from the rapidity of its growth and fulness of foliage. It is the 
E. amygdalina which yields more volatile oil than any other 
tested, and which therefore is largely chosen for distillation ; thus 
it is also one of the best for subduing malarian effluvia in fever 
regions, although it does not grow with quite the same ease and 
celerity as E. globulus. The respective hygienic value of various 
Eucalypts may to some extent be judged from the percentage of 
oil in their foliage, as stated below, and as ascertained by Mr. 
Bosisto at the instance of Baron Ferdinand von Mueller, Director 
of the Victorian Botanical Department for the Exhibition of 
1862 : — 
E. amygdalina 
E. oleosa 
E . leucoxylon 
E. goniocalyx 
E. globulus ... 
E. obliqua 
3*313 per cent volatile oil. 
1*250 „ „ 
1*060 ,, ,, 
0'9i4 „ t, 
0*719 „ „ 
0*500 ,, „ 
The lesser quantity of oil of E. globulus is, however, compen- 
sated for by the vigour of its growth and the early copiousness of 
its foliage. The proportion of oil varies also somewhat according 
to locality and season. E. rostrata, though one of the poorest 
in oils, is nevertheless important for malarian regions, as it will 
grow well on periodically inundated places, and even in stagnant 
water not saline. E. oleosa (F. v. M.), from the desert regions 
of extra-tropic Australia, might be reared on barren lands of other 
countries for the sake of its oil. According to Mr. Osborne’s 
experiments, Eucalyptus oils dissolve the following, among other 
substances, for seleCt varnishes and other preparations : — Cam- 
phor, pine-resins, mastich, elemi, sandarac, kauri, dammar, 
asphalte, xanthorrhsea-resin, dragon’s blood, benzoe, copal, amber, 
anime, shellac, caoutchouc, also wax, but not gutta-percha. 
These substances are arranged here in the order of their great 
solubility. The potash obtainable from the ashes of various 
