CONTENTS 



Part 1 (September, 1916) 



PAGE 



Ellis, J, C. B., and Morison, C. G. T. The ammoniacal nitrogen 



of peats and humus soils. Part I , . . . . . 1 



Davis, William A. The estimation of carbohydrates, V. The 



supposed precipitation of reducing sugars by basic lead acetate 7 



Robertson, G. S. Notes on the nature of the phosphates con- 

 tained m mineral phosphates. (Two figures m text) . . 16 



Stapledon, R. G., and Jenkin, T. J. Pasture problems: indi- 

 genous plants in relation to habitat and sown species . 26 



Russell, Edward John, and Prescott, James Arthur. The 

 reaction between dilute acids and the phosphorus compounds 

 of the soil. (Twenty figures in text) ..... 65 



Prescott, James Arthur. The phenomenon of absorption in its 

 relation to soils. A resume of the subject. (One figure in 

 text) ill 



Pickering, Spencer The fruiting of trees in consecutive seasons 131 



Davis, William A., and Prescott, James Arthur. Note on the 



loss of phosphoric acid during fusion with ammonium fluoride 136 



Part 2 (March, 1917) 



Hammond, J., and Hawk, J. C. Studies in milk secretion. I. The 



effect of nutrition on yield and composition. (Two figures in 



text) 139 



Hammond, J., and Hawk, J. C. Studies in milk secretion. II. The 



relation of the glands of internal secretion to milk production 147 

 Wild, Leonard John. Some soils of the Southern Island of New 



Zealand with special reference to their lime requirements. 



(Two figures in text) ........ L54 



MosscROP, T. Duncan. Some conditions affectizl^ the value of 



calcium cyanamide as a manure . . . . . .178 



Williams, Gwilym. Hydrolysis of the soluble protein of swede 



turnips 182 



WoRMALD, H. The celery-rot bacillus. (Plates I and II) . . 216 

 Taylor, A. M. Black currant eelworm. (Plate III, and One 



figure in text) ......... 246 



