Cxiv Journal of the Asiatic Society of Bengal. {N.S., XIV, 
gardens needed special adaptation to the conditions. bs spray “_ 
must not be such as are likely to cause harm t o consumers of the man 
factu achines and fluids must be v ole 
pie, ae oy Pi Sn — are U oO give continuous supervision to any 
one oper. ust spraying could be a very economical method of 
co 
treating ae id hehe if a satisfactory powder were forthcoming. 
Rhizoctonia in Jute: the oe effect of Potash 
R FINL 
manuring.— By R. S. 
The results of tee investigation into the manurial pose abi of jute 
indicates a i itines on between the incidence of attacks of the fungus 
Rhizoctonia on the 6 rop and the potash content of the soil. 
2 Sellar India comprises two great soil Yvon, viz. Nate 
viu 
the old albiviin which is a red laterite soil of much more ancient 
origin. 
_ The new alluvium, which generally contains no free carbonate of 
lime, is well supplied with nes salts, and is often very rich in phosphoric 
acid and in potash. The verage ee o: Se otash 4 about 0°7, and 
individual samples have een found to - much as 2°0%, 2 
the silt tract, jute is ey grown on es d for several y 
in succession, but it is $ rare to et more than an Tate plant, nae 
_ The red soil tract or * oid. alluvium ” differs widely from the silt, 
being very deficient in lime and hosphoric acid. The total potash 
con 0 igs deed 
young crops of valuable ned lines. This experience led to more detailed 
Investigation, and it was u Lanne d found, that the inhibiting effect, on 
Rhizoctonia, of the manu supplied, was due to the pot i 
also been found that the kpcheatien of 100 po “sated - ee per acre on the 
red soil at Dacca increases the yield of fibre by a 
ae ia Jute was grown on a series of plots at Dues mete the pass 
con uch as 1° ived speci ot ge : 
of plants suffering from izoctoni 
meee 10% of the Plants | in plots to which no potash salts had been 
applied be alwa: sreced 
In ollaboratio on with the Imperial Mycologist the work 1s prea 
extended i in other directions ea suggestive results have been 0 . 
Immunity and Disease in Plants. —By E. J. BUTLER. 
necessary to distinguish between the avoidance of disease, 
It is 
endurance of disease and true immunity or resistance to disease. 
veral instances are given of the ways in which plants may i 
eh t 
the 
psgg 
resistance to disease differs from the above in depen 
some structural or Physiclogiea characters of the plant > which event 
cessful invasion by 
lh a 
ee a ae re 
