SUGAR CANE EXPERIMENTS, 153 
soils will certainly not be accompanied with benefit, and 
where lighter soils occur, an opinion may now be formed 
by the use of DYER’s method of soil analysis which will 
serve as a fairly reliable guide for the advisability of their 
use. 
By using groups of experiments arranged on similar 
lines to the one now recommended, planters can, if they 
desire to do so, satisfy themselves as to the relative 
merits on their soils of the various sugar cane manures 
offered to them by manufacturers and of the advisability 
of the use of gypsum, sulphate of iron, mineral phos- 
phates and other suggested manurial matters, and if ap- 
plied to, I shall always be pleased to draw out for planters 
arrangements of trial plots which, in my opinion, will 
tend to elucidate these or similar agricultural problems. 
It is important for the praé€tical planter to bear in 
mind the well authenticated faét that the yields of 
plants cultivated on the experimental scale almost in- 
variably are much higher than the average of those ob- 
tained over large areas, and that, in consequence, the 
differences in yields either of varieties of canes, or due 
to the ations of manures, will be more accentuated on 
his experimental field than he can hope to obtain on the 
fields of his estate, 
