LIMITS OF ENDURANCE OF DIFFERENT FARM CROPS. 193 



Experiments ivitli Common Salt. 

 Five pots were filled with soil No. 1 together with the 

 complete fertiliser and the following quantities of sodium 

 chloride, per 100 fibs of soil : — 



No. of pot 15, '01 per cent. NaOl. 



16, '05 



17, '10 



18, '50 



19, 1*00 



As it was found afterwards on analysis of this soil that 

 it contained '016 per cent. NaOl, the above figures become 

 '026, *066, 116, *516, and 1*016 respectively. 



The pots were sown on June 3rd with 10 grains of wheat 

 in each pot. A light mulch of shredded cocoa-nut fibre 

 was placed in each pot and the earth kept slightly moist 

 throughout the experiment. 



On July 1st notes were taken as to the appearance of 

 the different pots. 



15, had germinated well, growing vigorously. (The grain 



is now in the ear, Oct. 8th.) 



16, had germinated well, growing well but not as vigor- 



ously as No. 15. 



17, had germinated well, growing less vigorously than 



No. 15. 



18, had not germinated. 



19, had not germinated. 



Pots No. 16, 17, 18, and 19 were thrown out and resown 



on July 3rd. Soil No. 2 free from chlorides, being used 



and no fertiliser added. They received sodium chloride as. 



follows :— - 



No. 16, *02 per cent. NaCl 



„ 17, *05 

 „ 18, -10 

 „ 19, '20 



M— Oct. 8, 1902. 



