Ittvieirs Olid K,*iracls. — Hnylunltiirc. S)'-. ACt'i) 
has never oblaiiied a crop of Canols wortli aiijtliiii^-, alil)(iiij;li lie lias tried every 
means Iiis jiulguienl could suggest, or others reeoinaieud . In the aiitinnii of 1830, 
bein^ engaged in preparing- a suitable soil for evergreens and American plants, 
tlie thought struck him that he might try the efll-cts of the same soil in growing 
Carrots. The sort of peat used, is called .Mo.-s-/';ag, that is, pure decayed vege- 
table matter, without any mixture uf sand, &c. The ground was trenched about 
two feet deep, and a little dung added. The first frost was taken advantage 
of, for the purpose of wheeling on the peat, which was laid regularly on, about 
eight inches thick, with a slight dusting- of lime. In this state it lay till 
spring-, exposed to the frost, when it was dug- in, — ^the seed was sown in the usual 
manner, — it received the common routine of cuhure, — and the success was most 
complete. 
Loudoni^s Ncw-IitvenfcU Bu'der. 
After Mr. Loudon has stated that a s;rcnt improocmrut in the coustractiwi of 
BAters of every ilescriptioti, has jusrt been made by Mr. Perkins, the celebrated 
eno-ineer, particularly applicable to the he;i4ing; of hot-houses, by hot water, — 
he proceads to give a few ideas of a very simple construction for a boiler; and he 
says, suppose we have a common 'boiler, such as is used in coniraou wash-houses, 
and wbich Mr. Kevvley uses in the siphon mode of circulating hot water; then 
place another boiler within it, of such a size as to leave only a few inches between 
the iuner boiler and the outer boilcir all round, and support it in this position by 
stays, (fig. 72) Let this inner boiler have a hole in its bottom, about one-third 
72 of its diameter, and let its rim be two inches below 
'the level of the water to be heated. These arrange- 
ments being made, and heat applied below, a circula- 
tion instantly takes place, and continues; the water 
coming into contact with the heated bottom and sides 
of the outer boiler, rising rapidly to the surface, and 
descending through the inner boiler, which thus ne- 
cessarily contains the coldest portion of the liquid. 
r>n« great advantage of this construction is, that the bottom of the outer boiler, 
liaviirg its heat constantly carried off by the liquid, is not liable to burn out. For 
ihesiphoti and level modes of -circulating water in hothouses, this boiler promises 
to be a greatimprovement. 
8. — TfiAXSACTIONS OF THE LONDOX HORTICLTLTL'RAL S0( lETV. 
A Report on the f'arietics of the Pine-Apple, cultivated in the Societi/'s Gardens. 
By Mr. Donald Munro, FX.S,, Gardener to the Society. Read, De- 
cember 7th & 21st, 1830, and January 4th, 1831. 
Continued from page 403. 
SPECISS I. — ANANASSA BRACTEATA. 
1 . Scarlet Piue, — Brazilian Scarlet, of the Horticultviral Society's Catalogue. 
And Aminassa bracteata, of the Botanical Register, vol. 13, foU 1081. 
Leaves retnarkably long and -flat, rather broad and flaccid, of a yellowish green, 
often tinged with pale brown, and almost destitute of mealiness, spines very 
strong, far asunder, and rather regular. Flowcn large, dark purple, contrast- 
ing beautifully with the scales, which are of a brilliant scarlet at that stage of 
growth. Fruit pyramidal, before ripening of a dullish yellow colour, on its 
/ 
