1J6 



AUSTRALIAN AGRICULTURE. 



as it shows signs of fermenting ; re-boil it, for a second 

 syrup, adding more sugar, and pour it upon the ginger 

 again. This strengthening of syrups has to be done three 

 or four times, until the ginger has lost all wild flavor, and 

 is perfectly sweet and aromatic. It can then be put up 

 for use, as one of the richest and most pleasant preserves 

 known. To make it in the highest perfection, and with 

 the delicious flavour peculiar to Jamaica preserved ginger, 

 the roots are allowed to remain in the soil through the 

 winter ; they start into fresh growth next season, and in 

 November or December following, the young offshoots 

 from the old roots are dug and preserved as described. 



XL ROTATION OR CHANGE OF CROPS. 



THE OIL AND FIBRE YIELDEHS. 



The results and advantages of rotation or change of 

 crops are many. They include such treatment of the soil 

 as secures the heaviest returns from the crop in the land 

 at the time ; and to give the soil renewed strength for the 

 g crops to follow. Some 



system to secure rota- 

 tion has been followed 

 from the earliest times. 

 The rule now is that 

 no two crops of the 

 same order of plants 

 should follow in suc- 

 cession. The soil con- 

 tents the plant food 

 in the soil are thus 

 distributed and induced 



Wedge Press (or Extracting OiiB from Seeds. 



to do duty in the most effective manner, by supplying to 

 one crop what had not been used up by the preceding 

 product. In the process of nature, richer plants take the 

 place of poorer, as the latter decay and furnish the 



