CONTENTS. 



Page 



Officers of the iStation 2 



Announcement. - 3 



Table of Contents 4 



Report of the Boafd of Control 7 



Report of Treasurer 8 



Report of the Director 9 



Summarj' of Station Work 9 



Station Bulletins 10 



Fertilizer Law, Explanations 11 



Text of the Law 12 



Observance of the Law 15 



Fertilizers 17 



Instructions for Sampling 19 



Form for Description of Sample 21 



Explanations of Fertilizer-Analysis and Valuation 23 



Nitrogen, Organic 23 



Ammonia 23 



Nitric Acid 23 



Phosphoric Acid, Soluble 23 



" Reverted.. 23 



" " Insoluble 23 



Potash... 24 



Valuation defined 24 



Average Trade Values for 1881, 1882 and 1883 24 



Estimating the Trade Value of a Fertilizer 25 



Uses of Valuation 25 



Agricultural Value of Fertilizer . 26 



Analyses and Valuations of Fertilizers 27 



Classification of Fertilizers Analyzed 27 



Native Phosphates — .-. 28 



Bone Char - 28 



•^ Superphosphates, Plain (Non-Nitrogenous) 28 



" Directions for making 29 



" Ammoniated (Nitrogenous) and Guanos 30 



Tables of Analyses and Valuations . . . 33-38 

 Comparison of different Superphos- 

 phates of the same Brand and of 

 analyses with the guarantee 39-4.'{ 



