24 



have been made in glasshouses in the Lea Valley district. High 

 pressure steam, low pressure steam, and baking were all tried, and 

 each found to possess some advantages. One of the low pressure 

 steam methods was found to work very easily for heating soils 

 in situ ; a high pressure steam method was found to work well 

 in combination with trenching. 



Methods are described for dealing with rankness of growth, 

 perhaps the chief danger arising out of the partial sterilisation 

 of soils. 



This work is now being transferred to the new Experiment 

 Station which has been opened in the Lea Valley. 



V. "The Work of the Rothamsted Experiment Station." 



E. J. Russell. Journal of the Board of Agriculture, 

 1914. 21. 



A description of some of the recent work of the Station in its 

 bearings on technical problems of present-day interest. 



VI. "The Effect of One Growing Crop on Another." E. J 



Russell. Fourteenth Report of the Woburn Experi- 

 mental Fruit Farm. 



VII. "Results of Experiments with Chrysanthemums on 



Partially Sterilised Soils during 1913." W. Buddin. 

 Transactions of the National Chrysanthemum Society, 

 1913. 21—24. 



A continuation on a larger scale of the experiments dealt with 

 last year. The earlier results were in the main confirmed. When 

 equal numbers of blooms were carried per plant those obtained from 

 the steamed compost were larger and firmer than those from the 

 untreated compost. When, however, the plants on untreated 

 carried fewer blooms they were of as good quality as those on the 

 steamed compost. The earlier blooming on the steamed compost 

 was less marked than in last year's experiments. 



MONOGRAPHS. 



It is proposed to bring out a series of monographs in which the 

 members of the Staff will discuss the particular problems they have 

 been investigating, as soon as sufficient material has accumulated to 

 render such a course desirable. Two have already been written : — 



" Soil Conditions and Plant Growth." 2nd Edition, revised 

 and enlarged. E. J. Russell. Longmans & Co., 

 5/- net. 



" Inorganic Plant Poisons" WINIFRED E. Brenchley. 

 Cambridge University Press, 5/- net. 



