1 Noy., 1899.] QUEENSLAND AGRICULTURAL JOURNAL. VII. 
Samples of Suyar-cane Juice, as, for instance, obtained at the rollers of 
sugar-mill, must be sent in clean bottles holding about a pint of juice. The 
juice may be preserved by the addition of a drop or two of formaline, or by 
sterilising the juice by heating the bottle containing the juice, before corking 
up, in a bucket or pan of warm water, gradually raising the heat until the juice 
in the bottle reaches a temperature of about 140 degrees Fahr, 
Samples of Milk or Cream, for analysis, are best preserved by addition of 
a few drops of formaline solution; other preservatives should not be used. 
Should a sample be taken with the view of checking the composition of an 
article tv be sold or bought—for instance, the value of a manure sold and 
guaranteed to contain a certain amount of fertilising substances—an average 
sample must first be taken by the buyer in presence of the vendor. ‘This 
sample is to be divided into three portions, each portion being securely fastened, 
marked, and scaled by both parties, each retaining a portion for further 
reference, and forwarding the third sample to be analysed. 
| “THE DISEASES IN PLANTS ACT OF 1896.” 
Department of Agriculture, 
Brisbane, 19th January, 1899. 
IS Excellency the Governor, with the advice of the Executive Council, and in pursuance 
of the provisions of ‘‘ Zhe Diseases in Plants Act of 1896,’ has been pleased to make 
the following further Regulations. 
J. V. CHATAWAY. 
THE FUMIGATION OF FRUIT FOR EXPORT. 
_ 1. Any one who wishes to erect a chamber or building for the fumigating of fruit is requested 
to give notice to the Under Secretary for Agriculture, who will take steps to see that the chamber 
or building is properly constructed. 
2. When it is required to fumigate fruit for export, twenty-four hours’ notice must be given 
tu the said Under Secretary or such other officer as may be duly authorised to accept such notice. 
3. The operation of fumigating must be conducted under the control of an officer authorised 
by the Minister for Agriculture. . 
4. The fumigating chamber may be made of any convenient size or material, the essential point 
being that it shall be capable of being closed absolutely airtight, and provided with a flue-pi 
in the roof which can be opened or closed to allow of the escape of the gas after fumigation. Whe 
flue must be provided with a box or chamber to contain caustic soda or potash to destroy the gas. 
The fumigating chamber must be provided with a shutter or sliding panel in the lower portion 
of the door or wall. 
Door, flue, and shutter must all be made to close absolutely airtight. 
; DiIREcrions FoR FumicatInG witH Hynrocyanic Acip Gas. 
__ Proportions of Ingredients. —For every 150 cubic feet of room take 1 ounce of cyanide of potas- 
sium, 5 fluid ounces sulphuric acid, 10 fluid ounces water. 
Having placed the fruit to be fumigated in the chamber, see that the flue and the shutter in the 
door or lower part of all are properly closed. | 
The acid is then to be diluted in the following manner :—The whole of the water is placed in 
a shallow china or glazed earthenware vessel, such as an ordinary wash-hand basin. (Metal 
vessels are TCE unless they are leaden ones.) ‘The sulphuric acid is next poured on to the 
water in a thin stream, stirring the while with a stick. Do not mix by adding the water to the acid. 
The basin containing the acid thus diluted (which should be allowed to cool) is now placed in 
the fumigating chamber, and the cyanide of potassium is emptied into it. ‘ 
The gas is given off with great violence, and the door should be immediately closed. 
The whole is now to be left to itself for one hour. At the end of this time the shutters in the 
flue and in the door are opened, and the draught produced drives the gas out of the chamber. At 
the end of half an hour the door is thrown open, and if the draught has been effective there should 
be hardly any trace of hydrocyanic gas recognisable. The chamber may be left in this condition 
for another ten minutes or a quarter of an hour. The fruit is now to be moved and allowed to 
remain in a well ventilated place, preferably out of doors, for another half an hour. Samples of 
fruit will be examined from time to time by the entomologist. 
Yaution.—As hydrocyanic acid gas is most deadly in its effects on animal life, the greatest 
care must be taken in its use. 
Department of Agriculture, 
’ Brisbane, ' - 
This is to certify that has treated cases of citrus fruit with hydrocyanic 
acid gas for one hour, under my supervision, ‘These cases have been branded ‘fCrown” over 
Passed.” - 
Shipping-marks : 
PerS.5.: 
Consigned to: 
M1 
