24 & 
to be a specie’s of <**£ or ^ . 
threads which run over th ,__ its effect * ls not unlike that of a 
the younger parts to wither a • d , m ^, ans Q f dead leaves which 
bacterial blight. The disea ^ h and by the passage of the 
are blown and lodge against branches, ana^ ^ ^ di$ease 
threads from one branch to an ° was OT)t r id 0 f by pruning off 
which was present in and ^ burning them together 
r if” :r " ~ * • p " , “ 
method of treatment is also applicable m this case. 
L , t , 
more^esp'eciaby of 'seedlings ; They are h“n£ 
present not of any economic .11 mp see dlings as is said to occur 
ye , been them readily ; by 
‘this Su it pos^s a strong power of resistance to leaf d, senses. 
Physiological EFFECTS.-The pen^tto . of 
acid soil or into a heavy, impenetrable clay shedding of the 
checking of the growth of the tap root an f h later al anrt 
irjs X" ii T£g «-»- SS - 
the other case they are apparently tity ' Those of the first 
also occur on untapped tiees in < , , wood j n tapping ; 
type are prevented by avoiding measur- 
while those of the second type, w u ^ f C e of the tapping 
able by feet and may necessitate * ^nanBton ^ ^ 
surface to the uppei portions before they fuse up with the 
when they are young and pea-like and betoie tney 
main wood. 
Examples of Fasciation, whmh wnsfete .m 
of antierlike Structures, sometimes 
occur, though they are rarely met with. 
DISEASES OF ROBUSTA COFFEE. 
Leaf Diseases .— Hemileia ao a d f sea se°in L robusta 
was originally supposed to pro “ e m . eva , ent on that plant as it 
coffee, has been found to , P disease-resisting species 
is on Liberian coffee. In introducing a disease resisting 
