31 



ating on many leguminous plants. The lime and phosphate mixture, costing 

 about $10 per ton, would in all probability accomplish these ends quite as 

 well as the Lime-Fertile. 



EXPLANATION OF THE TABLES OF ANALYSES. 



In all of the analytical tables, the general form adopted in previous years 

 has been adhered to. In case of the mixed fertilizers, one section is desig- 

 nated as fertilizers furnishing nitrogen, phosphoric acid and potash, the other 

 section those which furnish nitrogen and phosphoric acid. Both of these have 

 been arranged alphabetically, according to the manufacturer's name. The 

 nitrogen is given in its various forms as follows: as nitrates and ammoniates, 

 water soluble organic, water insoluble organic and total. It should be under- 

 stood that nitrogen in form of nitrates and ammoniates, and the water soluble 

 organic nitrogen, is not only easily dissolved but highly available. The quali ty 

 of the water insoluble organic nitrogen is indicated in the tables by the words 

 " passed " and " inferior." The word " passed " indicates that the brand 

 carries its water insoluble nitrogen in a satisfactory form, while the word 

 " inferior " indicates the presence of inferior forms of organic ammoniates, 

 as' measured by the laboratory method. The column headed " Guarantee 

 substantially met " will indicate at a glance whether the particular brand 

 shows a commercial shortage. The brands showing a serious commercial 

 .shortage have been designated by the word " no." On the other hand, where 

 the guarantee is substantially met, the word " yes " has been used. Such an 

 unusually large number of brands contained potash, both in form of muriate 

 and sulfate, that it was thought best to give approximate proportions of each 

 rather than give in each case the percentage of chlorine present. This practice 

 insures the minimum of footnotes. 



