THE GROWTH AND NUTRITION OF PLANTS. 129 



worth of one fertilizer should be put against a dollar's worth of 

 another. The granite drift soils of New Hampshire seem to need 

 potash because potash feldspar is not abundant enough in them. 



O. B. Hadweu said that in making maple sugar a sediment, 

 supposed to be lime, is found in the bottom of the pans in greater 

 or less quantities, and asked how it gets there. 



Professor Whitcher said that the lime in maple sap is combined 

 with malic acid, forming malate of lime. More or less of this 

 substance is always presenii in maple sap. 



William D. Philbrick spoke of the work done at the Connecticut 

 Agricultural Experiment Station in regard to settling the wants of 

 soils. Not only different farms, but different fields on the same 

 farm, require different applications. 



Mr. Hadwen, as Chairman of the Committee on Discussion, 

 announced that at the meeting next Saturday, Joseph T. Rothrock, 

 Professor of Botany in the University of Pennsylvania, would 

 speak on "Forestry." 



BUSINESS MEETING. 



Saturday, March 1, 1890. 



An adjourned meeting of the Society was holden at half past 

 eleven o'clock, the President, William H. Spooner, in the chair. 



The Secretary read letters from the Housatonic Agricultural 

 Society and the Worcester North Agricultural Society, conveying 

 the thanks of those Societies for the invitation to appoint a 

 member who should have the free use of the Library and Library 

 Room of the Massachusetts Horticultural Society, for the pur- 

 pose of preparing papers to be read before the Institutes of those 

 Societies, and announcing that they had respectively appointed 

 James H. Rowley, of Egremont, and George Cruickshanks, of 

 Fitchburg. 



Joseph Goddard, of Roxbury, 



having been recommended by the Executive Committee, was on 

 ballot duly elected a member of the Society. 

 9 



