EXPERIMENT STATION RECORD. 



Editor: E. W. ALLEN, Ph. D., Assistant Director. 



EDITORIAL DEPARTMENTS. 



Chemistry, Dairy Farming, and Dairying — The Editor and H. W. Lawson. 

 Meteorology, Fertilizers and Soils (including methods of analysis), and Agricultural 



Engineering — W. 11. Leal. 

 Botany and Diseases of Plants — Walter H. Evans, Ph. D. 

 Foods and Animal Production — C. F. Lang worthy, Ph. D. 

 Field Crops — J. I. Schulte. 



Entomology and Veterinary Science — E. Y. Wilcox, Ph. D, 

 Horticulture — C. B. Smith. 

 With the cooperation of the scientific divisions of the Department. 



CONTENTS OF VOL. XVI, NO. 6. 



Editorial notes: Page- 

 Relation of teaching force to students in agriculture and horticulture ... . 525 

 Has the teaching force kept abreast of the demand for agricultural in- 

 struction? 527 



What should be the basis in developing the teaching of agriculture? 528 



The experiment stations as publishing agencies 529 



New agricultural building at the North Carolina College of Agriculture and 



Mechanic Arts 531 



Recent work in agricultural science 533 



Notes 616 



SUBJECT LIST OF ABSTRACTS. 



CHEMISTRY. 



Colorimetric estimation of phosphates, second method, O. Schreiner and B. E. 



Brown 533 



Determination of citric-acid-soluble phosphoric acid in Thomas slag, O. 



Bottcher - 534 



Action of water upon phosphates of calcium, F. K. Cameron and A. Seidell.. 534 



The gravimetric determination of calcium, E. Kettler 534 



The gravimetric determination of calcium, O. Briick 534 



The gravimetric determination of calcium, E. Kettler 534 



The determination of potash in soils, A. Levi 534 



Determining the clay content of soils, Emmerling 534 



Determination of nitrogen in organic compounds, H. C. Sherman and M. J. Falk. 534 

 Determination of phosphoric acid and nitrogen in organic substances, F. von 



Konek 535 



Determination of organic nitrogen by sodium peroxid, F. von Konek and A. 



Zdhls 535 



The use of sodium peroxid in analysis, H. H. Pringsheim 535 



The determination of nitrogen, E. Jalowetz 535 



To what extent does the alkalinity of the glass apparatus affect the accuracy of 



Kjeldahl determination of nitrogen? K. Barelt and H. Schdnewald 535 



An apparatus for the determination of nitrogen, Nicolas and Delaud 535 



Determination of ammonia and albuminoid nitrogen in water, J. Effront 537 



The examination of waters and water supplies, J. C. Thresh ,.,.-.,... 537 



I 



