SCIENCE AND INDUSTRY. 
but it should be possible for experts to lay down some criterion. In the Philip- 
pines, the criterion is whether the land with the timber on it will fetch a higher 
price than the land after the mill logs have been removed to the mill. 
The next step is the demarcation of all forest land by survey, and, following 
on the demarcation, comes the permanent reservation of the land as State Forest. 
Such reservation must be of a character that will make it exceedingly difficult for 
TREE FELLING, HUON, TASMANIA. Peppermint Trees: “Eucalyptus Amygdalina,” of Tasmania, 
are admitted to be the tallest trees in the world. 
a revocation to be obtained. Land suitable only for forestry and dedicated to 
this purpose should be inalienable. 
Having established the forest estate on a permanent basis, then the question 
of its management must’ be envisaged. There will be large areas of destroyed 
forest, small areas of partially destroyed forest, still smaller areas of milling 
country, and, lastly, areas of barren country suitable for afforestation. All these 
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