302 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
are growing; yet they thrive well, and hence we may conclude 
that a great depth of mud is not essential. There is, as a matter 
of course, an amount of leaves which fall on the water and after 
a time sink: these frequently blow to the sides, and are often 
deposited in the right place to assist the plants in our case. I 
have not had an opportunity of testing these Lilies in running 
water, nor should I choose such a spot for them. Our lake is 
nearly always at one level, or close upon it, with a regular supply 
by means of a spring. The water from this source is deemed 
“hard,” but the exposure and admixture ere it reaches the plants 
no doubt prevent any harm being done. I have an idea that 
water strongly impregnated with lime, or that from springs on 
the chalk, would not be so suitable ; but of this I have not so far 
had an opportunity of making any experiments. From what I 
observed, however, in one case the leaves were considerably 
marked, and the flowers too, by a chalky deposit. I have only 
so far heard of one direct or even partial failure, and that I 
cannot explain. I am under the impression that it was owing to 
the running water, not far from which there is, I believe, a mill; 
but for what purpose it is used I do not know; it is, however, 
possible that some floating matter may have had deleterious 
effects. I believe that Monsieur Latour-Marliac, to whom we are 
greatly indebted for so many fine hybrid Water-lilies, is located 
in a favoured spot, where springs abound from which issues forth 
warm water. If this be so it should be a great assistance in 
hastening on the growth from the seedling stage to the flowering 
plant. I believe, too, that M. Marliac grows a good number in 
tubs. This may, however, be only for the greater convenience of 
propagation and after removal. That they may be cultivated in 
this manner, however, in this country has been clearly demon¬ 
strated at Burford Lodge, Dorking, where Sir Trevor Lawrence, 
Bart., has a good collection under the care of Mr. Bain. I 
believe that the tubs are protected sufficiently during the winter, 
to prevent the water from freezing, by means of litter or leaves. 
If not in such a natural style as one would prefer, there is at 
least one merit in the tub culture, viz. that of an easy inspection. 
In one garden in North Wales with w T hicli I am acquainted, viz. 
The Plas, Tan-y-Bwlch, a start has been made by Mr. Boberts, 
gardener to W. E. Oakeley, Esq. This has been done by forming 
an entirely new pond for their special culture; and as this is well 
