20 



which are not so exacting as to soil. When these things are 

 taken into consideration, it would seem the part of wisdom 

 to be cautious about introducing Catalpa on a large scale. 

 To plant a little as an experiment would do no harm; but to 

 plant it as a business proposition would be a mistake. 



106. The common Catalpa is native in Georgia; but it 

 has the same defects as the Hardy Catalpa and the addition- 

 al one of being a slower, smaller growth. It is used locally 

 for fence posts. 



107. Eucalypts. — The introduction of the Eucalypts 

 from Australia is sometimes spoken of. They have been 

 grown successfully in California, but only in those parts 

 where there is little or no frost; and there is scarcely any 

 chance of growing them in any part of Georgia. Even in 

 California there is reason to believe that the rate of growth 

 has been exaggerated; and the State and United States for- 

 esters have found it advisable to warn the public against too 

 great expectations from Eucalyptus plantations. 



108. Reference literature. — "Manual of the Trees of 

 North America," Sargent. 



"Checklist of the Forest Trees of the United States," 

 Sudworth. 



109. Topics for further study, — 



(a) Formation of knots, 



(b) Branching habits, 



(c) Arrangement of leaves, 



(d) Outlines of leaves, 



(e) Identification by winter buds, 



(f) Identification by bark, 



(g) Identification by grain. 



