SCANDINAVIAN SEED-CONTROL STATIONS. 11 



found to have no injurious effect on tbe seed. The machine has been 

 generally adopted by Scandinavian seedsmen. 



Germination tests of seeds before and after being run through the 

 "Mlsson" or "Svalof" seed-coat crusher show the great improvement 

 resulting from this treatment. The Copenhagen station has published 

 the following results: Red clover containing 25 per cent of hard 

 seed — germination before treatment (in three days), Gl per cent; after 

 treatment (in three days), 9G per cent. White-clover seed containing 

 31 per cent of hard seed — germination before treatment (in five days), 

 62 per cent; after treatment (in three days), 90 per cent. Alsike clover 

 seed containing 6G per cent of hard seed — germination before treatment 

 (in four days), 27 per cent; after treatment (in three days), 98 per cent. 



LATITUDE ALLOWED IN SEED ANALYSIS BY THE DANISH SEED- 

 CONTROL STATION. 



The latitude allowed in seed analysis for purity is 2 per cent; for 

 germination of pure seed, 3 per cent in case of over 95 per cent germi- 

 nation, 4 per cent in case of 90 to 95 per cent germination, and 5 per 

 cent below 90 per cent germination ; for germination of seed purchased 

 (pure viable seed), 5 per cent; for grain weight, G per cent for legumi- 

 nous seed and 10 per cent for grass seed; for weed seed, 0.3 per cent 

 (see below). 



The amount of discount per pound to be allowed for deficiency in 

 purity and germination is calculated as follows: 



Deficiency per cent X price per pound 

 Discount for impurity = - Guaranteed purity. 



„. , j. , „ . ,. Deficiency per cent x price per pound 



Discount for deficient germmation = , — •'— ^ , \ —J J 



Guaranteed germination. 



Hard seeds. — If certain percentages of hard and of viable seeds are 

 guaranteed the hard seeds are calculated as equal to one-third the 

 value of the viable seeds, unless another relation is agreed upon at the 

 time of the sale. 



Weight. — For each deficient per cent a discount of one-half of 1 per 

 cent of the price of the seed is given. 



Weed seeds. — For the deficiency, calculated in percentage of the seed, 

 15 per cent of the cost of the seed is deducted for each per cent of weed 

 seeds unless these are harmless. In such case the discount is given 

 for a possible excess of impurities. If the seed is guaranteed free from 

 noxious weeds beyond a certain maximum, a content of 100 dodder seeds 

 and 200 other foul weed seeds per kilogram beyond this maximum is 

 allowed. In case of a greater content of weed seeds a discount of 2 

 per cent of the cost of the seed per kilogram is given for each 100 and 

 200 weed seeds, respectively, contained therein beyond the maximum 

 quantity allowed, the greatest discount allowed being 25 per cent of 

 the cost of the seed. 



2231— No. 1 2 



