pots, in a mixture of loam, peat, and sand ; and, in 
summer, it succeeds best by being placed out with 
the alpine plants. 
A somewhat curious enquiry was instituted, in 
Germany, a few years ago, regarding the relative 
properties of differently coloured plants ; of those 
odorous and inodorous; agreeable and disagree- 
able ; distinguishing these latter qualities as they 
exist amongst plants of different colours. Upwards 
of four thousand species were examined, and their 
colours and qualities registered. The Campanulas 
appeared to be amongst those which were most 
deficient of white flowers, and those wanting 
fragrance. Little more than four in a hundred 
were white; and about one in a hundred only 
possess smell. This instance, however, was found 
to be at variance with the general rule, as deduced 
from all the plants examined. Amongst the total 
number, white flowers were most abundant ; next 
to these, yellow ; and then red; the difference not 
being great between them. Of all other colours 
and intermediate shades, the numbers proved to be 
much less. White flowers were not only the most 
numerous, but they also proved proportionably the 
most fragrant. Amongst coloured flowers, the red 
liad the greatest, and the blue the least, tendency 
to the formation of odoriferous substances. On the 
average, there appeared to be only one odoriferous 
species in ten. Again, it appeared that amongst 
the white flowers which were odorous, not more 
than one in fifteen were disagreeable ; but, of 
orange and brown flowers, by far the greatest por- 
tion proved to be offensive. 
