42 EUCALYPTS CULTIVATED IN THE UNITED STATES. 



he receives many inquiries concerning the merits of certain species for 

 bee pasture. In a subsequent portion of this publication will be found 

 a list of the species useful for this purpose. Iri planting trees for 

 forest cover, wind-breaks, shade, timber, or fuel it would be well, 

 wherever the bee industrj^ is important, to select varieties recognized 

 as flower producers. Several species valuable for the purposes men- 

 tioned a))ove — notabh^ the Sugar Gum {Eucalyptus corynocalyx), the 

 Red Gum {E. rodratci)^ the Red Iron bark {E. sidet'oxyloii)^ E. hemi- 

 phloia, and E. polyanthema — are profuse bloomers and are thronged 

 with bees during the blooming season, which with some species is 

 quite protracted. 



AS IMPROVERS OF CLIMATE. 



The Eucalypts have the reputation of benefiting the climate of those 

 regions where they have been planted. Evidence upon this subject 

 is so conflicting, however, that the truth is ascertained with ditficulty. 

 Whatever the fact may be, the belief is quite general, especially in 

 southern Europe, that the eflect of Eucalypts upon the climate is 

 distinctly sanatory. 



The plantation of Eucalypts at Tres Eontane, in the Roman Cam- 

 pagna, is the instance most generally cited by those who contend for 

 the beneficial influence of these trees on the climate. In fact, the general 

 planting of Eucalypts throughout southern Europe seems to have been 

 given a decided impetus by reports of the results at Tres Eontane. On 

 this point Charles Belmont Davis, American consul at Elorence in 

 189-1, writes in Consular Reports No. 168 as follows: 



It is this latter quality [the property of distributing a balsamic atmosphere] which 

 has brought the Eucalyptus into such prominence in Italy, and has been the cause 

 not only of the planting of thousands of trees by private individuals and public cor- 

 porations, but of its receiving the indorsement of the Italian Government as well. 



He adds: 



Whether the plant does absolutely contain such a healthful quality as many 

 attribute to it has always been and still is a question in the minds of many who 

 have given the subject intelligent thought and systematic experiment. That the 

 planting of these trees has met in some districts with a degree of success in allaying 

 the ravages of malaria there would seem to be little doubt. 



In the consular report mentioned above Wilbur B. Hall, American 

 consul at Nice, writes: 



The Eucalyptus seems destined to revolutionize silviculture in the countries men- 

 tioned [France, Algeria, Italy, Spain, Corsica, Portugal, and Cape Colony], not only on 

 account of the many remarkable properties of the tree, its resin, its wood, and its 

 rapid growth, but also its great power of absorbing enormous quantities of water 

 from wet and swampy lands, drying them and rendering them tit for cultivation, aa 

 well as its tendency to thus eliminate malarial conditions from the lands whence it 

 grows. 



M. Carlotti, who has studied Eucah^pts exhaustive!}^ on the island of 



