Duncan, L. N., report of, on Local Experiment 



Work Cir. 35: 20-31 



Eggs, Preserving for Home Use Cir. 36 



Entomologist, report of, on Local Experiment 



Work Cir. 35: 12-13 



Entomologist, report of R. 30: 21-22 



Field Agent, in Agriculture, report of, on Local 



Experiment Work Cir. 35: 9-11 



Gardner, W. A., report of R. 30: 17 



Hare, C. L., report of R. 30: 28 



Hinds, W. E., report of, on Local Experiment 



Work Cir. 35: 12-13 



Hinds, W. E., report of R. 30: 21-22 



Horticulturist, report of on Local Experiment Work Cir. 35: 17 



Horticulturist, report of R. 30: 20 



Jones, Lewis A., report of, on Local Experiment 



Work Cir. 35: 18-19 



Nitrification, The Nitrification of Pyridine, Quino- 



line, Guanidine Carbonate, etc., in the Soils __Bul. 196 



Introduction Bui. 190: 05 



Review of Literature __ Bui. 196: 65 



Chemicals Used ___ Bui. 196: 66 



Experimental Work. Methods Bui. 196: 68 



Nitrification of Pyridine, Quinoline, Guani- 

 dine Carbonate, etc., Bui. 196: 69 



Table 1 — Nitrification of Dried Blood, 

 Pyridine, Quinoline, Etc., Nitrates Expres- 

 sed as p. p. m. of Dry Soil .Bui. 196: 69 

 The Effects of Varying Amounts of Nitro- 

 genous Compounds on Nitrification Bui. 196: 70 



Table 2 — Effect of Varying Amounts of 

 Nitrogenous Compounds on the Rate of 



Nitrification Bui. 196: 71 



The Effect of Partial Sterilization of Soils 

 on Nitrification of Pyridine, Quinoline, 



etc. Bui. 196: 71-72 



Table 3 — The Effect of Partial Sterilization 

 of Soils on the Nitrification of Pyridine, 



Quinoline, etc __Bul. 196: 72 



The Effect of Non-nitrogenous Substances 

 Toxic to Plants in Water Culture on the 

 Nitrification of Dried Blood, Pyridine, 



etc __Bul. 196: 73 



Table 4 — The Effect of Non-Nitrogenous 

 Substances on the Nitrification of Dried 

 Blood, Pyridine, etc., in Norfolk Sandy 



