REPOKT OF CONSULTING CHEMIST FOR THE YEAR 1911. 



553 



The analytical results were: — 





Soil dried at 212° F. 





Per cent. 



Organic matter and loss on heating 



"Z-01 



Oxide of iron .... 



o Dh- 



Alumin ..... 



it ZO 



Lime ...... 



1 0 



Magnesia ..... 



. -43 



Potash ..... 



. -61 



feocia ...... 



•no 



uy 



Phosphoric acid 



. -20 



Sulphuric acid .... 



. -04 



Insoluble siliceous matter 



. 88-07 





100-00 





, -076 



r This was a soil deficient in vegetable matter and extremely poor in 

 nitrogen. Its light character would probably make it an unsuitable 

 one for apple-growing, and, as in the previous case, the real require- 

 ment of the soil is to impart to it more " substance." In the manurial 

 direction, the principal requirement is the supply of more vegetable 

 matter and nitrogen. 



2. Watees. 



Of the eight samples submitted to me, five were perfectly good and 

 wholesome supplies. In the sixth case, the w^ater, though not really 

 bad, was not altogether satisfactory ; the remaining two cases are 

 noticed below : — 



(a) This was a water from Maidenhead. The analytical results 

 were : — 



Grains per gallon. 



Total solid residue ..... 20-44 



Oxidizable organic matter . . . '08 



Nitric acid 4-34 



Chlorine . . . . . . 2-58 



Equal to chloride of sodium . . 4-26 



Free ammonia ...... None. 



Albuminoid ammonia .... -001 



This water contained but little dissolved organic matter or ammonia, 

 but the proportions of nitrates and chlorides were distinctly high, and 

 indicate the presence of drainage matter. In addition, a distinct 

 amount of lead was found to have been dissolved in the water. 



As a result of subsequent inquiry, it was found that there had been 

 a case of illness, and that cesspools existed not far from the well. 



(b) This was a water which came from a well in Surrey. The 



analysis was as follows : — 



Grains per gallon. 



Total solid residue 61-04 



Oxidizable organic matter . . 3-99 



Nitric acid 16-31 



Chlorine 6-89 



Equal to chloride of sodium . . 11-35 

 Free ammonia ...... "044 



Albuminoid ammonia .... '032 



