On the Kohl-Rabi. 
517 
I'lie produce of the six lots grown by him shows a variation 
ranging from 40 to 58 tons per Irish acre, the lightest crop 
being raised on the friable loam on gravelly subsoil, and the 
heaviest on the clay resting on a very retentive subsoil. This 
result confirms the reports of previous experiments as to heavy 
land being best adapted for the plant. The reader must bear in 
mind that the weight of the crop in all these experiments is 
calculated bv the Irish acre,* which is more than one-half larger 
than the imperial ; the exact proportions being V62, or as 30^ 
to 49. It may, perhaps, be more clearly stated by the relative 
money values, which are as follows : — 
£. s, d. £. s. d. 
0 2 6 ])er Irish acre is equal to 0 1 6j per imperial acre. 
10 0 „ „ 0 12 4 
The Royal Dublin Society should insist on all returns being 
made in future according to the imperial standards. The local 
measures create great confusion when comparative results are 
required. 
Other correspondents furnish us w ith sufficient data to assume, 
that from 26 to 30 tons per acre is the average produce in Eng- 
land, and from 20 to 25 in Scotland. This, however, must be 
taken with considerable reservation, as the data on which the 
average is founded are not of a sufficiently extensive character 
to warrant us in saying that these returns will hold good when 
Kohl-Rabi is more generally cultivated. 
Although the collections of roots at the annual shows of the 
Smithfield Club form an attractive part of the exhibition, no pre- 
miums are offered as at Dublin, nor is any entry made in the 
catalogue issued by the Club. We are, consequently', without 
any record of either the growers or the produce. At the show in 
December last there were exhibited specimens of nearly all the 
known varieties of the Kohl-Rabi, and among them were single 
bulbs of the oblong green, weighing Iplbs., and of the oblong 
purple ITilbs. Of the latter variety. Colonel North exhibited 
specimens weighing from 12 to IGlbs. ; and of the former, the 
Earl of Essex sent specimens weighing 14 to 151bs. At the ex- 
liibition of roots held at the Crystal Palace simultaneouslv with 
the Smithfield Show, some excellent roots were shown by Messrs. 
Sutton and Sons, Reading, weighing from 8 to 121bs. To Colonel 
North, however, all the first prizes in the various classes were 
adjudged. Four varieties were represented — viz., the late green 
and purple, and the oblong green and purple varieties. 
* Au Irish acre is 88j yards square, and contains nearly 7840 square yards. 
Aa imperial or statute acre contains only 4840 square yards, the side of the square 
heing 69J yards. 
