14 
N . C. Agricultural Experiment Station 
Fig. 2. Kjeldahl Distilling Apparatus foe the Determination of Nitrogen 
1. Rack supporting Kjeldahl flasks. 
2. Showing beneath it bunsen burners and gas connections. 
3. Glass bulbs preventing direct overflow of boiling liquid in Kjeldahl flask. 
4. Condenser with lead coils inside surrounded by running water. From the lead coils 
the condensed liquid flows into Erlingmeyer flasks 5, 6 expanded tube inserted in 
the stopper of the receiving Erlengmeyer flask containing glass beads moistened 
with water to prevent the escape of free nitrogen during the process of distillation. 
