Wright. — Estimation of Nitrogen in Organic Substances. 225 



The author has investigated this method as applied to the estimation 

 of nitrogen in meat-products, organic nitrogen in fertilisers, and dried 

 tankage and blood. 



The following results were obtained, the amounts of nitrogen found by 

 the formaldehyde method and the Kjeldahl method being shown : — 



For permission to publish these results the author desires to thank the 

 Christchurch Meat Company (Limited), in whose laboratory at Islington 

 most of the work in connection with this investigation was carried out. 



8— Trans. 



