THE FLORAL WORLD AND GARDEN GUIDE. 
22o 
less tlinn 287 specimens of these valuable plants. Messrs, llollis.son’s splendid 
group of herbaceous plants was one of the finest ever exhibited. Messrs. Cole, of 
Withington, made a conspicuou.s figure in the classes for stove and greenhouse 
plants. The attendance on the first four days amounted to upwards of 21,000. 
Tub Great Trial of Pot.i.toes at the Cniswicic Garden ought to possess 
considerable interest for all classes of horticulturists, for it consists of 350 named 
kinds, gathered from all parts of our own country, and many from France, Holland, 
and other countries. In the majority of sorts, a row of 25 tubers of each are 
planted, the rows being from 2i to 3 feet apart, so that plenty of space is afforded. 
Royal Botanic Garden.s, Kew. — These beautiful gardens continue to enjoy 
the favour of the million, if we may judge by the report of Dr Hooker a short 
time since. During the year 1872, the gardens were visited bv .).5»,219 persons, 
an increase of a little more than GOOD over the numbers in 1871. On Whit-Monday, 
upw'ards of 59,000 persons l isited the gardens. 
Mis.s Pratt’s Flowering Plants. — Messrs. F. Warne and Co. have latelj- 
published a new edition of Miss Pratt’s “ Flowering Plants, Gras.ses, Sedges, and 
F'erns of Great Britain,” in 6 vols., price £3 15s. Messrs. Warne have wisely 
provided new, or improved the old plates, which number in all upwards of 300. 
Vegetation and Moonlight. — M. Charbonnier, of Paris, states that he has 
observed in his aquaria a very remarkable growth of cryptogamous vegetation 
under the influence of the light of the full moon. Gardeners, says the Athenaum, 
have long affirmed that the moon’s rays give great activity to the growth of mush- 
rooms. It will be interesting to prove by careful experiments, if this be a fact or 
a fancy. 
TO CORRESPONDENTS. 
How to Destroy Cockroaches, Ckicket.s, and Woodlice. — Clare Hall . — 
I have seen in the Floral World, many times, inquiries how to destroy woodlice, 
etc. I have determined to describe the way in which I have cleared my house 
of these and other pests. About three and a halt years ago I entered this 
house as soon as finished, and in a very short time cockroaches made their 
appearance, followed shortly after by crickets ; the latter I detest more than 
the former. I then obt.ained a few pots (white and glazed) such as are used 
for potted meats, fish, and shrimp paste. They were half filled with water 
and treacle. This destroyed the cockroaches, but not the crickets, for they swam 
about the surface like water spiders. I then applied treacle alone ; this suc- 
ceeded in clogging their feet ; when the surface was covered, the pots were 
emptied. Woodlice have been destroyed in the same way. These I have had to 
empty in the morning, and to be sure of killing tiiem have poured boiling water 
over them. I buy two pounds of treacle, for which I pay fiveperice. Perhaps mani- 
may not know what treacle is, as in some parts it is called Molasses, and in 
others Golden Syrup. I make no apology for troubling you, as I know that you are 
wishful of doing good. 
Phloxes, etc — Mr. Massie sent the flowers in a card-box, which with an east 
wind and a hot sun to accompany them on the journey, is as bad as consigning them 
to the fire at once. To attempt to name them Avould be sheer waste of time. Wc 
are constantly advising our friends to enclose fresh flowers between ivy leaves, 
and to avoid the use of cliip boxes and cotton wool, but very many refuse to be 
advised. 
Jasmine. — C. H . — You must not cut the shoots of the pot jasmine that you 
trained to the roof. Train all the growths you can get, and be thankful that a pot- 
plant keeps its health so well. Put the cyclamens in a bed of coal-ashes in a pit, 
and keep them watered for the present but sparingly. 
Apuides in Greenhouse. — Edward Dowell, Dunton Vicarage . — We have had 
no opportunity of testing the experiment, but we know that tobacco smoke will 
effectually destroy aphides. 'Tobacco powder, which m.ay be obtained of any seed- 
man, will also kill them. When applying the latter, damp the foliage, and then 
dust the powder over it, and after it has been on twenty-four hours give the plants a 
good syringing to wash it off, for if left too long upon the leaves they will be 
injured. 
July. 
