LIMITS OF ENDURANCE OF DIFFERENT FARM CROPS. 399 



The pots were examined on August 21st, when it was 

 found that in all cases the germination was very weak and 

 the young shoots had withered almost as soon as they 

 appeared above ground. 



The pots were consequently resownon October 10th with 

 the following quantities : — 



No. 159, -001 per cent. NEUONS. 

 „ 160, -002 

 „ 161, *003 

 „ 162, '004 



On examining these pots on October 21st, it was found 

 that the germination was unaffected in all cases. Pots 159 

 and 160 were growing well, but the growth was affected in 

 No. 161, and more strongly in 162, the leaves beginning to 

 curl and the tips to wither. 



On December 4th, when re-examined, all plants had 

 apparently recovered and were doing well. The results 

 therefore, with ammonium sulphocyanide are not conclusive 

 and will require to be repeated. Germination appears to 

 be affected by quantities above *004 per cent, and the 

 growth of the plants affected by '003 per cent., with this 

 quantity and up to '004 the plants may recover under favour- 

 able conditions. Above *004 the plants do not recover. 



Experiments with sodium chlorate. 

 The following pots were prepared and sown on August 

 6th, 1903, sodium chlorate being applied in the under- 

 mentioned quantities : 



No. 163, *002 per cent. Na01O a 

 „ 164, '003 

 „ 165, '004 

 „ 166, '005 „ 

 „ 167, -006 



The pots were examined on August 21st, when it was 

 found that pots 163 and 164 had germinated well. In 165 



