Salton Sea
a remarkable temporary lake formed in southern California, in 1905 and 1906, by the overflow of water from the Colorado river. The water ran through the water channel of an irrigation canal which conducted water from tion canal which conducted water from the Imperial Valley region. The land sea-level and when the water was desea-level and when the water was deriver which normally emptied into the Gulf of California, an area of over 400 square miles was flooded and over 2,000 square miles were threatened. Unsuccessful attempts were made to restore the Colorado river into its original channel, cessful attempts were made to restore the Colorado river into its original channel, constructed across the break, from which stones were dumped. By this means the lake was checked and gradually disappeared. In 1910 the second break ocforded unique opportunity for biologists and botanists to study the effects under such conditions. such conditions. chemistry KNO3, potassium nitrate or niter; found in dry and hot countries as or SALTPETRE, in cially by exposing a mixture of calcarea natural product, but prepared artificially by exposing a mixture of calcareous soil and animal matter to the atmoschiefly used in the manufacture of gunnitrate with potassium carbonate. It is the sal prunella of commerce. nitrate with potassium carbonate. It is chiefly used in the manufacture of gunthe Punjab, India, consisting of two main chains which run E. and W., and embrace