382 
*«*s£3S53553 
»5r- sss^ixsscr 
rH^«s*rr 
ridges, &c. 
„ »=* = £ 
Secretary, Department of Agriculture and Stock. 
It is strongly advised to fill up one of these forms in each case 
when a sample of soil is submitted for analysis. 
/Queensland Agricultural Journal Vol. XXVII, No. 3 ■) 
EXPERIMENTS IN THE EXTRACTION OF 
MANIHOT GLAZIOVII LATEX. 
Two experiments of this kind have been made recently at Kalamti, 
near Cm in the Lower Congo, with trees, in the first case.grow- 
, in a sal ’ c ]y hollow. The results, which are given in the B ' ,iletm 
Agricole du Congo Blege, for June 19IL P- 359. show that in the first 
experiment marie in the dry season, employing 129 trees the yield of 
latex was I ”9 gallons, equivalent to 3 2-7 lb. of dry rubber; theje- 
newals of the tapping were made during twenty-nine days. It was 
noriced that during this trial, the latex was much thicker and richer 
in rubber than in the one to be described. A « rcums ‘““ 
observed in regard to Manihot was noticed, namely a decided increase 
in the yield of latex after the first four renewals of the tapping . 
towards the end of the trial a gradual diminution occurred in 
quantity collected daily. A former experiment, made on the sa 
trees during the rainy season, gave a yield of 14-6 gallons of latex, 
or 28.3 lbs. of dry rubber, 
The second trial was made in the dry season, employing 242 
trees, situated on a plateau possessing a clay soil with pebbles. e 
tapping, repeated for ten days, gave 27.6 lbs. of dry lubber. 
