EXPERIMENT STATION REPORTS. 281 



study of the various forms of nitrogen in peat and the publication of the 

 results has been delayed thereby. The work has been finished, however, 

 and the manuscript is being prepared. 



The extension to other organic materials of the method of studying 

 the nitrogen compounds of peat has been started and data has been ob- 

 tained on the composition of the organic base goods used in the manu- 

 facture of fertilizers. 



The first series of experiments on the study of the composition of the 

 drainage waters from soils treated with various materials has been com- 

 pleted and the manuscript is in course of preparation. New work has 

 been started along this line to determine the effect of liming peat and 

 muck soils. 



A manuscript describing the preliminary work on Adams 2e, "Ad- 

 sorption in Kelation to Osmosis in Soils" is nearly complete. The work 

 under this project has shown that so called osmosis is a complicated 

 process and that it may be of considerable importance as a factor in soil 

 fertility. 



MISCELLANEOUS. 



One hundred and seven samples of a miscellaneous nature have been 

 analyzed during the year, and in addition, a large number of marl and 

 limestone samples have been examined as to their value for applying 

 to acid soils. 



As referee on the subject of Inorganic Plant Constituents for the 

 Association of Official Agricultural Chemists the writer has done con- 

 siderable work on methods of analysis and other members of the staff 

 have collaborated on methods of analysis along other lines. 



The usual course of lectures on Fertilizers was given to the short- 

 course students in Horticulture and General Agriculture. 



Respectfully submitted, 



ANDREW J. PATTEN, 



Chemist. 

 East Lansing, Mich., June 30, 1916. 



REPORT OF THE ENTOMOLOGIST. 



Director R. S. Shaw: 



Dear Sir — Following is a brief report of the work of the Division of 

 Entomology for the year ending June 30, 1910. 



The year was made notable by the most serious invasions ever known 

 to the writer, of two insects, viz., the bean-maggot, and the red cherry 

 leaf-beetle. The former insect was studied and a bulletin was presented 

 by Mr. Don B. Whelan, to whom this pest was assigned. Mr. Whelan 

 succeeded in finding out the conditions under which this pest thrives 

 and the methods of avoiding its attacks. Tlie whole matter is discussed 

 in Circular No. 2S. 



The Avork of rearing the parasites of the San Jose Scale has pro- 

 gressed somewhat, several additional species of parasites having been 



