Halket .— The Effect of Salt on the Growth of Salicornia. 151 
when sodium chloride was present, and that the greatest growth took place 
when plants were grown in the solution containing 3 % of sodium chloride. 
The curves also show that increase of salinity beyond a certain concentration 
is unfavourable to growth, it being slowest in the solution containing 5 % of 
sodium chloride. 
Growth of Salicornia oliveri , Moss., in nutritive solutions containing various percentages oi 
sodium chloride. 
-—- o % NaCl. -1 % NaCl. -2 % NaCl. 
- 5 % NaCl. -4% NaCl. -5 % NaCl. 
Many of these plants of *S. oliveri branched ; when this was the case 
the branches were also measured. It was found that the growth of the 
branches corresponded to the growth of the main axis, that is, that less 
growth took place in the absence of sodium chloride than when it was 
