PART III. 141 
Mr. MILLIGAN said from the grower’s point of view the system 
was an advantage in that it gave him an independent opinion of the 
grade of his product and at the same time he was able to make a fair 
estimate of the price he might expect for his cotton. 
Mr. SIMPSON considered Mr. Koch's statement of great interest. 
Cotton grading had not developed far in Uganda; the grower generally 
separated his cotton into two or three classes himself. Most of the 
ginners had no experience of cotton before, which made the subject 
of grading difficult. The buyers in Liverpool would always buy on 
their own sampling, disregarding any previous grading marks. 
Experienced graders were scarce and therefore commanded high 
salaries—too high for a department to pay. The development of 
grading in Uganda must be along the lines adopted in America and 
Egypt. It was hoped to establish a branch of the Liverpool Cotton 
Association in Uganda. All contracts of sale would be registered and 
have an arbitration clause to cover disputes. All the bales would be 
marked so that each bale could be traced back to the ginner. In 
addition there was much seliing of cotton to large buyers in Uganda 
from the ginners who abrogate all responsibility at the conclusion of 
the sale. 
In the course of discussion it was pointed out that South African 
cotton was not sold on the grade mark but on the sample submitted 
to the grader. Against this system must be placed the possibility 
of false sampling and the difficulty of obtaining true samples. Tt 
was demonstrated that in Uganda it was impossible to apply the 
South African system of grading. 
A question by Mr. Cameron regarding the possibiity of the 
grader’s certificate being used as a negotiable document as in the case 
of maize, gave rise to a discussion, in which it was pointed out that 
the sale of a product such as cotton, having many grades of different 
value, must be more complicated than the sale of a commodity like 
maize. There were so many legal points involved that it was 
impossible for such certificates to be used as negotiable documents. 
CHAPTER VIII. 
SUMMARY OF CONCLUSIONS IN COTTON SECTION. 
LI. TrcuNiQue oF FreLp EXPERIMENTS. 
That whatever method of field experiment was used it should be 
so designed as to permit the degree of accuracy being determined. 
Attention was also called to the inaccuracy which may be involved 
In comparing varieties which are different in habit and which may, 
therefore, be differently affected by the cultural conditions adopted, 
¢.9., uniformity of spacing for large and small types is obviously 
unsound. 
2. Tur KeepriNG AND UTILISATION OF RECORDS. 
That the keeping and utilisation of records with regard to the 
Cotton plant and its yield necessitates Experimental Stations being 
adequately equipped.