APP. l] 



RESULTS. 



315 



The aqueous extract always contains some proteids soluble 

 in water and may contain a small amount of peptones and 

 album oses, but these substances are often absent, or present 

 only in traces. 



Considerable quantities of amides will be found. Traces 

 of ammonia, nitrates, and nitrites sometimes occur, but com- 

 monly these compounds are absent. 



Quantitative. 



The following values were obtained in a set of experiments 

 with seeds and shoots of Onobrychis. 



The p.c. are calculated for air-dried material in each case. 



Proteids insoluble in water 



Proteids soluble ,, 



Peptones and Albumoses 



Amides 



Ammonia j 



Nitrates and Nitrites/ 



Ammonia. Nitrates, etc. (p. 260). 

 Experiment No. 



Ammonia 



Nitrates 



Nitrites 



nil 



nil 



nil p.c. 



CHAPTER XI. p. 265. Oils and Fats. 

 Qualitative. 



If a portion of the oil from Lepidium seeds is qualitatively 

 examined it will be found that the whole of the oil is not 



