830 



Agricultural Journal of Victoria. 



tioii, and the results of the investigation may be summarized as 



foHows : — 



Found adulterated with other fruit ... 2 



Good colour and appearance ... ... 121 



Fair appearance ... ... ... 8 



Colour somewhat indifferent ... . . 7 



Adulterated with starch, agar-agar, etc. ... 2 



Preservatives used ... ... ... nil 



With respect to the second quality jams, the added fruits were 

 found to be composed of either apple, pear, plum or quince. Three 

 samples only, out of the 56 examined, were found to contain preser- 

 vative. The results of the examination may be summarized fas 

 follows : — 



Jams containing Boric Acid. 

 Diamond plum ... ... 4*0 grains to the lb. 



Magnum Bonum . . . 6'79 ,, „ 



Easpberry and other fruits 8*45 „ „ 



The Other Added Fruits Were 

 Pear ... ... ... in 11 instances 



Apple 



Peach and Apple 



Quince 



Pear and Apple 



Plum 



Orange 



Pear or Quince 



Without added fruit ... 



Total ... 

 Colour and Appearance. 



56 samples 



Good 



Fair 



Dull 



Inferior 



Bad... 



in 8 samples 

 „ 11 



,> 18 „ 

 ,. 17 „ 

 11 ^ ,, 



56 

 Metallic Contaminations. 



Attention has been called in earlier reports, to the large quantities 

 of zinc present in certain of our canned fruit products. Laboratory 

 investigations traced the presence of this impurity to the soldering 

 flux employed, and the want of care in washing the utensils before 

 use. The quantitative determination of the various possible metallic 

 contaminations is a lengthy and tedious process. The matter, however, 

 appeared sufficiently important to justify the examination of a large 

 number of samples. The follownng figures give the results of the 

 zinc and tin determinations in different samples taken haphazard : — 



