2 28 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



termites abounded. One of the pieces had been treated in 

 London by the Powell wood-process with a termite-resisting 

 solution, while the other was left in its natural condition. The 

 latter piece, after a period of some months, was found to be 

 almost consumed by the termites, while the other piece was 

 untouched. The process is stated to improve the appearance 

 of the wood, and to protect it against dry rot and similar growths, 

 as well as against the termites. The solution is stated to be 

 odourless, and innocuous except to insects, and the cost of the 

 process is low. Plant on an experimental scale has been 

 working at Bombay for some time past ; and the value of the 

 process has been recognised in Australia, where extensive works 

 have been erected by the Local Governments. Particulars can 

 be obtained from the Secretary, Powell Wood-Process Co., Ltd., 

 28 Fleet Street, London, E.G. 



3. A White Ant Exterminator. 



In the Natal Agricultural Journal for July 1906, according 

 to the Indian Forester, Mr Claude Fuller, Government 

 Entomologist, illustrates and describes a machine for the 

 destruction of white ants, placed on the market in South Africa 

 by Messrs P. Henwood, Scatter & Co., agents for the sale 

 thereof. 



This contrivance consists of an air-pump, connected by a 

 short length of rubber hose to a furnace. By working the 

 pump a continuous blast of air is driven into the furnace, 

 entering beneath and escaping through a pipe near the top. A 

 charcoal or cow-dung fire is first started in the furnace, and got 

 thoroughly alight by pumping. A powder is then sprinkled 

 over the fire and the lid is closed. By continuing the pumping 

 a very hot cloud of poisonous smoke is driven out through a 

 flexible hose. In use, the hose is inserted into a gallery of an 

 ant's nest and the smoke is pumped in. 



Wherever a gallery, sufficiently large to admit the nozzle of the 

 hose (about half an inch in diameter) can be obtained, the machine 

 can be used with the most satisfactory results ; not only are the 

 insects killed, but the gallery is thoroughly poisoned for an 

 indefinite period. 



The powder spoken of is sold with the pumps. A cheaper 

 and equally effective powder can be obtained by farmers at the 

 Department of Agriculture, Maritzburg, at 8d. per lb. 



