April 25, 1903. 
THE GARDENING WORLD 
365 
Trade Notice. 
A New Sulphur Vaporiser. 
All owners ancl workers in greenhouses, etc., are aware that 
the great drawback to the use of vaporised sulphur for checking 
and'destroying mildew and other fungoid diseases in plants 
has been the danger of the sulphur taking fire, and so causing 
great damage to foliage. An apparatus which completely over¬ 
comes this difficulty has just been patented ancl put upon the 
Nkw Sulphur Vaporiser. 
market by the Exors. of Robert Campbell, Water Street, 
Manchester. The principle of the invention is a most simple 
one. The proper amount of flowers of sulphur is passed, through 
the funnel neck (shown in the illustration) into a cylindrical 
steel heating chamber ; the funnel neck is loosely closed by a 
small glass ball which acts as a valve, rising and falling accord¬ 
ing to the pressure of the hot sulphur vapour, thus allowing 
the vapour to escape, but preventing the entrance of hot air 
where it would set fire to the boiling sulphur. The outer case 
of the apparatus is made double in order to conserve the heat, 
which is obtained from a specially-designed spirit lamp. Each 
vaporiser, when fully charged, will take 6oz. of sulphur, and 
so finely is the vapour distributed that this is sufficient to 
check mildew for 14 to 21 days, according to the prevailing 
atmospherical conditions, in a house of 10,000 cubic feet 
capacity. 
The vaporiser was thoroughly tested all last summer against 
mildew by some of the largest growers of Roses in the kingdom, 
and their reports were to the effect that in no oase had there 
been a flare, while they found it of incalculable service in com¬ 
bating this pest. The whole appliance has been designed to 
stand the usage of the garden, and, fairly treated, should last 
a long time, being strongly made of bright tinned steel sheet 
and wrought iron, and the heating chamber is of braized steel. 
Messrs. Campbell are also makers of insecticides, and their 
nicotine “ repurified ” is a compound of exceptional purity and 
guaranteed strength for the use of horticulturists who prefer 
making up their own insecticides. The addition of the 
smallest quantity of this greatly increases the efficacy of home¬ 
made preparations, such as soap and paraffin emulsions. 
Amongst other specialities Campbell's well-known weed-killer 
deserves attention at this time of the year. 
SOCIETIES. 
ROYAL HORTICULTURAL. 
April 7th. 
[Concluded Jrom page 326 .) 
Air. K. Drost, Kew Nursery, Richmond, Surrey, staged a 
group of dwarf Lilium longiflorum. There was only one bulb in 
each pot, and many of them had two and three stems. 
Mr. Chas. Turner had a group of the new Polyantha Rose 
Mme. N. Levavasseur. 
Mr. G. Reuthe, the Elardy Plant Nursery, Keston, Kent, ex¬ 
hibited a collection of Rhododendrons and Daffodils. 
Charles Dawson, Esq., Gulval, Penzance, staged a collection 
of Daffodils, consisting chiefly of the medium and short crowned 
section. (Silver-gift Banksian Medal.) 
Messrs. H. Canned and Sons, Swanley, Kent, exhibited a group 
of Zonal Pelargoniums in a cut state, done up in large bunches 
and set up in glass vases. The varieties were up to date in the 
matter of newness, freshness, and size. (Silver Banksian Medal.) 
Messrs. John Laing and Sons, Forest Hill, London, exhibited 
a group of Streptocarpus, the flowers of which were of large size 
and mostly of a rich violet colour, though there were also white 
varieties having a violet blotch in the throat. 
J. Kingsmill, Esq., Sharrow, Ripon, staged a small collection 
of new Daffodils, for which he received a Silver Banksian Medal. 
Miss Willmott, Warley Place, Great Warley, exhibited a few 
very choice varieties of Daffodils, including the magnificent 
trumpet named King Alfred, also Viscountess Falmouth, Cyprian, 
and Lord Manchester, all of which were very handsome. 
MANCHESTER ROYAL BOTANICAL. 
April 7 th and 8th. 
This beautiful fixture was this season held in the Town Hall, and, 
as usual, the major portion of the display was some very fine banks 
of Orchids, equal to anything that has been seen at these successful 
exhibitions. In addition, some fine collections of Daffodils were staged, 
and Messrs. Hogg and Robertson, Dublin, contributed a grand exhibit 
of Tulips, noted for their brilliancy of colouring. Messrs. Reams- 
bottom and Co., Geashill, co. Cork, had a pleasing display of their 
Alderborough stain of St. Brigid Anemones. 
Gold Medal Groups.—The Stone Orchid Company, Staffs., staged a 
collection of much interest and beauty, including Odontoglossum 
Adrianae Basette (F. C. C.), O. andersonianum splendens, O. trium- 
phans latisepalum (very fine), O. Cervantesii decora, O. Rossi majus, 
etc. 
