12 
knowledge are made by them. 
Brisbane is situated in a position that gives the field 1 
naturalist unsurpassed opportunities. The problems and 
interest of the fauna of Moreton Bay are a major subject 
and even among common forms of animals such as the 
star-fish new species are waiting description ; with regard 
to the shells, the list is far from complete. There are 
many other groups besides these two mentioned in which 
the position is similar. 
One might mention for example the almost unbeliev- 
able associations of a Cowry shell-fish and a sea slug, in 
which tile Cowry lays its eggs in the skin of tile sea-slug. 
That similar associations occur in fresh water is shown 
in one of the early stages in the life history of the 
Freshwater Mussel when it is actually imbedded in the 
skin of a freshwater fish. Similar association can he 
expected with other animals and many and extraordinary 
will be the discoveries as more investigation is under- 
taken. 
If we develop a habit of noting down odd items of 
interest in a day by day book and make observations 
as complete as possible we will complete a record that 
can be used by other workers and a reference for use in 
the future by ourselves. I remember such a book series 
kept by a lady now unfortunately not with us. This was 
in the form of a yearly volume indexed at the end of 
each year under subject. Such a series of volumes would 
contain a lot of valuable information quite easily avail- 
able. 
Close to a large city with the continual and definite 
change in the landscape that goes on year by year, a 
series of such note hooks would record for posterity the 
impact of man and his environment on wild nature and 
also prevent much information on species distribution 
from being lost. 
For the botanically minded T recommend a month 
by month census of the plants of a selected area and 
from experience I can say that you will be surprised at 
the variations in plant types that occur. Such a census 
was carried out by the Victorian Field Naturalist Botany 
Group for the Studley Park area, a reserve on the Yarra 
just a few miles from the city proper. 
A field naturalist does collect items of interest and 
it is suggested that a proper catalogue of these items he 
kept and the items numbered so that, no error can occur. 
The memory is not sufficient in these matters and T 
