Mr. Dunn further notes that the important point is the 
proportion of the soap and water :—“ Eight parts water 
and one part soft-soap thoroughly amalgamated form the 
lye which takes mineral oil, and thoroughly amalgamates 
with whatever proportion of this may be added,—that is 
to say, the paraffin may be put into the boiling soap and 
water in any quantity, and the whole will mix together 
of an equal strength throughout. Heat helps much in 
quickly producing thorough amalgamation of all the 
ingredients, and hence I have stated that they should be 
mixed in a boiling state. 
“Few plants in a green state will stand a strength of 
four wine-glasses (two gills) to the gallon , but at the same 
time it is not necessary to use it so strong for even Scale- 
insects, the most difficult to kill of all ordinary plant- 
pests. 
“ One wine-glass full of paraffin to a gallon of water is 
strong enough to kill Aphides, and such soft insects ; 
two wine-glasses for Thrips, and three wine-glasses for 
Scale is our ‘ regulation ’ strength. The tender young 
fronds of ferns and the young green growths of most plants 
ivill not be safe if over one wine-glass to the gallon is used.”* 
The following note regarding spread of Australian Bug 
during the year 1886, and means considered to be useful 
in checking its increase, was forwarded me by favour of 
Mr. F. von Schade, of Wynberg :—“ The Australian Bug 
( Dortliesia) has made its appearance in the village of 
Oudtshoorn, and we advise the property-holders to exert 
much vigilance in exterminating it at once. Putrid 
blood has proved a good exterminator of the bug. The 
stems and branches of trees must be painted with the 
blood, the smell of which attracts numerous insects 
which devour the bug. Ostrich droppings boiled in 
water and the solution syringed on the higher branches 
of trees lias also been found very effective. Then there is 
the solution made of tobacco and whale-soap for washing 
and syringing.”—‘ Wynberg Times,’ July 81st, 1886. 
* ‘ Eighth Report of Observations of Injurious Insects,’1884, published 
1885. iiy E. A. Ormerod. Simpkin, Marshall & Co., London, England. 
