42 PROCEEDINGS OF THE AMERICAN ACADE31Y. 



tions, which will enable the principles to be apphed by deduction to cases 

 that have not yet come within the scope of experience. 



To Induction and Deduction we must now add Reduction in order to 

 realize the full benefit of co-operation. 



Societies like ours can exercise some influence in a quiet way to encour- 

 age co-operation. Our meetings also have more immediate advantages. 

 The chief object in reading papers here is not to instruct the audience, but 

 to lay before the society the lines of the author's work. Some sugges- 

 tions may be brought out in the general discussion, but far more useful 

 ones in personal conversation. Hence it is only at the social meetings 

 that the full benefit can be expected. 



The necessity for co-operation has long been recognized in the useful 

 arts. In our factories we see men working together for a common pur- 

 pose, in such a way that each may add the results of his labor to those of 

 the others ; in an army co-operation is carried to the highest development. 

 It is to be hoped that the future will witness large armies of scientists 

 engaged not merely in collecting information and classifying it, but also 

 in making systematic inductions and applying them to Arts and Sciences 

 in general, and working in such a manner that each may add his results 

 to the general stock. 



