Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3743Chemical news office., 1932 |
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Strona 21
... treated plots . Eight plots were treated with 5 and 15 per cent . solutions of the four chemicals respec- tively on March 14th 1931 ; the remaining eight treated plots received similar treat- ment on June 4th , 1931. The plots were ...
... treated plots . Eight plots were treated with 5 and 15 per cent . solutions of the four chemicals respec- tively on March 14th 1931 ; the remaining eight treated plots received similar treat- ment on June 4th , 1931. The plots were ...
Strona 23
... treated plots were randomised round the two controls , the arrangement being such as to occupy a rectangle 7 plots ... treat- ment , identifications and counts of plants were again made . The squares were taken to represent a moderately ...
... treated plots were randomised round the two controls , the arrangement being such as to occupy a rectangle 7 plots ... treat- ment , identifications and counts of plants were again made . The squares were taken to represent a moderately ...
Strona 32
... treated as above and then the turpentine removed by treatment with steam , and the resin by heating with a strengthened lye . The bark from the trees can be treated by this method to obtain acetic acid . The acetate produced can be used ...
... treated as above and then the turpentine removed by treatment with steam , and the resin by heating with a strengthened lye . The bark from the trees can be treated by this method to obtain acetic acid . The acetate produced can be used ...
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