672 



Report on Inspection Work of the 



Table XXI (concluded). 



Special Mixtures 



and Unmixed 



Materials. 



Guaranteed. 



Highest. 



Lowest. 



Average, 



Found. 



Highest. 



Lowest. 



Average. 



Average 



amount 



found 



above 



guaranty 



Potash in 



Potassium chloride (muri- 

 ate) 



Potassium sulphate 



Kainit 



Acid phosphate and potash 

 salts 



Bone and potash salts 



Dried sheep manure 



Wood-ashes 



Mixtures of compounds of 

 calcium phosphoric acid, 

 etc 



Calcium in 



Carbonates (limestone, 



marl, etc.) 



Hydroxides (slaked lime) . . 



Oxides (quicklime) 



Mixtures of compounds of 



calcium, potash, etc 



Per ct. 



50.00 

 48.00 

 12.40 



10.00 

 5.00 

 1.80 

 6.00 



5.00 



Per ct. 



48.00 

 47.00 

 12.00 



2.00 

 2.50 

 1.00 

 1.00 



3.00 



Per ct. 



49 15 



47 80 

 12.07 



53 



38 

 23 



25 



4 50 



Per ct. 



53.50 

 52.70 

 14.40 



10.90 

 7.64 

 5.40 

 5.52 



5.30 



Per ct. 



45.14 

 48.64 

 11.44 



2.00 

 2.81 

 1.21 

 3.26 



4.30 



Per ct. 



49 80 



50 17 

 13 00 



5 59 

 5 10 



2 31 



3 95 



4 97 



39.00 

 50.00 

 64.00 



28.60 



33.50 

 26.45 

 43.00 



22.90 



35.60 

 39 44 

 53 50 



26 30 



38.50 

 50.60 

 65.55 



29.30 



25.65 

 29.75 

 61.75 



20.90 



34 04 

 42.54 

 63.65 



26 62 



Per ct. 



65 

 2 37 

 93 



06 



72 



1 08 

 0.70 



47 



*1 53 



2 10 



10 15 



32 



* Below guarantee. 



In connection with data relating to calcium compounds, it should 

 be stated that the guaranteed and actual figures are comparable only 

 on the basis of calcium because only calcium is considered in the guar- 

 anteed statements. Most of the materials contain magnesium also, 

 and if this were taken into consideration with the calcium, the amounts 

 above guaranty would be considerably greater. Carbonates would 

 show a surplus over guaranty of 3.25 per ct. (instead of a deficiency 

 of 0.98 per ct.); hydroxides, 14.22 per ct.; oxides, 11.90 per ct. 



In general, if we consider only the average results, the showing is 

 good, but it is desirable to pay attention also to some details in order 

 to show more clearly some of the extreme cases of variation above and 

 below guaranty, and this is done in the table following. We give the 

 highest and lowest and average amounts found above and below the 

 guaranteed amounts in the case of each constituent of special mixtures 

 and unmixed materials. 



An examination of the data in Table XXII leads to the following 

 statements : 



(1) In such materials as sodium nitrate, basic slag, rock-phosphate 

 (floats), potassium sulphate, kainit, bone and potash mixtures, the 

 number of samples below guaranty is within reasonable limits. 



