SPRAYING OF CHARLOCK. 43 

taken to ascertain whether aerating the affected cider would 
cure it. The pomace from a cheese was carefully broken up 
and placed into a large open tub; bottles of oily cider were 
emptied on the pomace, the contents of the tub were then 
well stirred, and, after standing for twenty-four hours, the 
mass was placed in the press, and re-pressed as in the manu- 
facture of small cider. It was found that the juice thereby 
obtained had nearly lost its oily character. It was placed 
imam OierewmcOnteniment,, ancdwmeventually entirely, lost) the 
oiliness, together with its former peculiar taste, and the 
liquid seemed likely to become very fair draught cider. 

SPRAYING OF CHARLOCK. 
An experiment in spraying charlock was carried out in 
1899 at four centres in North Wales, viz., three in Carnarvon- 
shire, and one in Montgomeryshire, under the direction of 
the Agricultural Department of the University College of 
North Waies, Bangor. Six plots, each one-eighth of an acre 
in size, were utilised for the experiment at each centre ; four of 
them were treated with dressings of sulphate of copper of the 
following strengths, viz.:—Plot I, 25 gallons of a 2 per cent. 
cHiicon lot: lly So) eallons,) of a 1 per cent. solution ; 
isleieeile son gallons of a 2 per cent. solution, Plot IV; 25 
gallons of a 4 per cent. solution; the remaining two plots 
were dressed with solutions of sulphate of iron, Plot V. 
Recomm AOn Callonsmotea 755 perm. cent. and) Piet VI. 
OMA Ons mOluNAn I Sei Cent) Mtessing. | At. the time of 
dressing the charlock was pretty far advanced at two of 
the centres in Carnarvonshire, viz., Penrhyn and Tanyfvn- 
went, and was mostly in bloom. At the third centre in that 
county, Madryn, what was at first taken to be charlock 
turned out to be wild cabbage, or ‘‘smooth-leaved charlock,” 
and the dressings had no effect whatever on it. A few true 
charlock plants, however, which grew amongst it, were con- 
siderably injured on some of the copper sulphate piots. It 
has been discovered in other experiments also that spraying 
