80 
THE FLORIST AND POMOLOGIST, 
[FEBBrARY, 
flavour, and very nutritious, the best way of prepar¬ 
ing it being as a haricot; very prolific, and in France 
“ under ordinary circumstances is early enough to 
ripen the greatest portion of the enormous number 
of pods it produces.”—Vilmorin-Andrieux & Cie. 
Tomato, Queen of Tomatos. — A free-growing and 
very prolific early variety of compact habit; the 
fruit have a very handsome appearance, as they 
hang in racemes (10—15 on each); they attain an 
average size equal to that of a Victoria plum, and 
are pear-shaped, of a smooth glossy red, and of fine 
flavour.—Dickson Brown & Tait. 
Turnip, Early Marble. —A globular white-fleshed 
variety of the green-topped type, very early, with 
solid crisp flesh, of excellent cooking quality; said 
to be much superior to the Early Stone, and earlier 
than Strap-leaf.—Harrison & Sons. 
NEW APPLIANCES. 
Horizontal Tubular Boiler. —This Boiler, of 
which a figure is annexed, is finding considerable 
favour amongst those who are interested in the heat¬ 
ing of plant structures. It is made in various 
lengths from 6 feet to 14 feet according to the heat¬ 
ing power required, and, as will be seen from the 
figure, consists of three water-way boxes, into which 
the pipes, which are specially made for the purpose, 
are jointed. The front and back of the furnace being 
fully exposed to the fire presents a large heating 
surface. The boiler is enclosed by brickwork, which 
presents no difficulty, and only requires the use of 
fire-clay shield tiles on the top to cover in the flues. 
The figure shows the return pipe entering from the 
hack of the lower box, the flow pipe passing out of 
the upper box. These boilers seem to combine many 
of the separate advantages of the ordinary tubular 
and saddle boilers.—Thames Bank Co. 
HORIZONTAL TUBULAR BOILER, ELEVATION. 
Clark’s Patent Syphon Condensing Stove, 
though not intended specially for greenhouses, can 
be used with safety to keep out frost from small 
houses, up to 12 ft. by 8 ft., with a very small con¬ 
sumption of gas, not exceeding 6 feet per hour, cost¬ 
ing less than \d. at London prices. Similar stoves 
are in existence, but they do not condense the vapours 
so effectually as this does, and though a portion of 
the carbonic acid must escape, as it cannot be 
entirely condensed, it will not injure plants. These 
stoves are also useful for bedrooms or offices, as they 
keep up an even temperature of 50° to 55°, not 
varying 5° the whole night, though the external 
temperature may fall several degrees below freez¬ 
ing point. One advantage they possess is, that 
a very small tube will, if desired, conduct the pro¬ 
ducts of combustion to the outside without loss 
of heat inside. They are also useful as an adjunct 
to existing heating pipes, where the boiler fire will 
not last beyond 3 a.m., which is generally the coldest 
period of the night; they are not intended to give 
heat quickly, but gradually. Thus an apartment at 
40° at 9 a.m. will be warmed to 50° by 10 a.m , and 
to 55° or G0° by 11 to 12 noon, and may be kept at 
60° up to 10 P.M., or all night, if desired, with the 
external thermometer at 30°. Gardeners have gene¬ 
rally, and very naturally, an objection to gas heating, 
and when burnt openly it is very injurious, but in 
Fig. 1. 
these stoves, which are entirely closed all round, 
such vapours as are not condensed must pass over 
or through a hot box directly over the flame, but 
not communicating with it, and as the temperature 
in this box must be heated to 300° to 400°, there is 
no chance of sulphurous or other vapour escaping. 
In proof of the condensing power of these stoves, it 
is found that in twenty-four hours the consumption 
of 120 feet of gas will produce three pints of liquid 
highly charged with sulphurous acid. To adapt them 
to gardening purposes, the moist air that would be re¬ 
quired could be readily obtained by placing a vessel 
of water over the hot-air chamber; or if such an 
arrangement is preferred, they can be fitted with a 
copper boiler to circulate hot water in pipes in the 
usual way. The stoves can be had with an Argand 
Burner (as in Fig. 1), which burns 2—5 feet of gas 
per hour, and as it gives light as well as heat, is 
perhaps best suited for bedrooms ; or with a Bunsen 
Atmospheric Burner (as in Fig. 2), which burns 
4—6 feet of gas per hour, gives heat only, and that 
more powerfully and continuously, and would there¬ 
fore be better adapted for greenhouses.—Warhurst. 
NEW BOOKS, ETC. 
Familiar Garden Flowers: figured by F. 
Edward Hulme, F.L.S., F.S.A., and described by 
Shirley Hibberd. Second Series. London : Cassell 
& Co. This second series of pretty pictures of choice 
and familiar garden flowers, with their descriptions, 
forms a very pleasant and entertaining book. The 
figures, though small, are generally accurate, and the 
text is genial, readable, and of an eminently popular 
character, with just a spice of historical and a 
flavouring of cultural information. The volume 
contains forty of these neatly-coloured plates, each 
accompanied by four pages of letterpress. A Third 
Series is to be issued. 
The Orchid Album (part V.) contains figures of 
Rescatorea Rlabochorum, Robb. f. [t. 17],from a plant 
flowered by Mr. Williams ; the large white chocolate- 
tipped flowers are very beautiful, and the peculiar 
trow'el-shaped sulcate lip marked with lines of purple- 
tipped papillae, is very peculiar. Burlinqtonia Can¬ 
dida, Lindl. [t. 18], a very chaste basket Orchid with 
pendent spikes of sweet-scented flowers. Anguloa 
Ruckerii sanguinea, Lindl. [t. 19], a remarkably bold 
and solid-looking flower, richly coloured, yellow out¬ 
side, and blood-red within. Dendrobium Ainsworthii 
