EUCALYPTUS TREES. 609. 
-olis or in any other city of Australia may, perhaps, 
not be of great moment; but, to build up such an in- 
stitution for all these colonies, the local efforts here 
_ have not been altogether insignificant. The integrity 
of a well-constructed whole, on which so much fore- 
thought has been spent, should, however, not be 
lightly disrupted ; or a carefully - organized depart- 
- ment, of whose meaning or obligations but few can 
really be aware, should not be suffered to be impeded 
in its progress. 
A botanic garden which cannot afford to maintain 
at least one collector in the field must be regarded as 
a very imperfect institution, especially so in a new 
country. For brisk interchanges, particularly, such 
material is needed as has amply the charm of novelty. 
Should we not also take an honorable share in unfold- 
ing the natural productions of the globe, especially 
when novelties or rarities are here almost within our 
grasp, and when assuredly the investigation of such 
is caleulated to advance as well the interests of tech- 
nology ? The total of the territory of Australia, not 
yet traversed by exploration, may be compared in ex- 
tent to the united areas of Britain, France, Scandina- 
via, Germany, Austria, Italy, Spain, Portugal, and 
Greece, and may therefore be estimated almost equal 
to extra- Russian Europe. It may be well imagined 
how eager the writer has always been to send emissa- 
ries into those wildernesses, more particularly while 
exploration and occupation progress. New forms of 
plants require to be elucidated, the range of the spe- 
cies needs to be determined, the geologic relation of 
the different specific forms has to be traced; and it 
- would be little short of blindness were we not to ad- 
