Sentence:  ...nitrogen is contained in the nitrate form in nitrate of soda and nitrate of potash, in the ammoniacal form in sulphate of ammonia, and in the organic form in dried blood, bonedust, bones, and digester refuse (<WSD>hashmagandy</WSD>), and manures of a similar class. 
Meaning of the word marked with <WSD> tags:  Residue remaining after organic material is processed, such as at an abattoir, used as fertiliser or by anglers as bait.