632 PROCEEDINGS OP THE AMERICAN ACADEMY 



Nine hundred and Second Meeting. 



November 23, 1898. — Special Meeting. 



The Academy met at the house of the President, Cambridge. 



The President in the chair. 



The Chair announced the death of David Ames Wells, 

 Associate Fellow in Class III., Section 3 ; and of Pierre C^cile 

 Puvis de Chavannes, Foreign Honorary Member in Class III., 

 Section 4. 



A letter was read from the Corresponding Secretary of 

 the Colonial Society of Massachusetts, thanking the Academy 

 for past courtesies, and requesting the use of its hall for the five 

 stated meetings of the Society during the ensuing year. 



On the motion of the Recording Secretary, it was 



Voted, To grant the request of the Colonial Society. 



The following papers were presented by title : — 



Japanese Collembola. By J. W. Folsom. Presented by S. H. 

 Scudder. 



The Use of the Transition Temperatures of Complex Systems 

 as Fixed Points in Thermometry. By Theodore Wm. Richards 

 and J. B. Churchill. 



The following papers were read : — 



On the Relationship of the Oceanic Currents and the Pelagic 

 Fauna. By Alexander Agassiz. 



Notes, (a) On Allen's Application of the Indicator Diagram 

 to Rowing. (5) Progress in the Use of a Ring Pendulum for 

 Gravity Determinations. By Thomas C. Mendenhall. 



Nine Hundred and tbird Meeting. 



December 14, 1898. 



The Academy met at the Jefferson Physical Laboratory, 

 Cambridge. 



Vice-President Trowbridge in the chair. 



John Trowbridge spoke on High Tension Electricity and 

 exhibited a number of photographs which illustrated the dis- 

 ruptive effects of electrical discharges. 



