'516 THE AMERICAN NATURALIST. (VOL. XXXII. 
raphy ”; Vice-President Whitman before Section B, ‘On the percep- 
tion of light and color” ; Vice-President Smith before Section C (to 
be announced later) ; Vice-President Cooley before Section D (to be 
announced later); Vice-President Fairchild before Section E, 
“Glacial geology in America”; Vice-President Packard before 
Section F, “ A half century of evolution, with special reference to 
the effects of geological changes on animal life”; Vice-President 
Farlow before Section G, “ The conception of species as effected by 
recent investigations on fungi” ; Vice-President Cattell before Sec- 
tion H, “ The advance of psychology”; Vice-President Blue before 
Section I, “ The historic method in economics.” 
The first step toward extending an invitation to the association to 
hold its Jubilee Meeting in the city of its birth was taken by the 
Boston Society of Natural History. The suggestion of this society 
secured the immediate and hearty codperation of His Excellency 
Governor Wolcott and of His Honor Mayor Quincy, and was followed 
by invitations from the various scientific and educational institutions 
of Boston and vicinity. 
The officers of the Massachusetts Institute of Technology and of 
the Boston Society of Natural History have generously placed their 
halls and rooms at the disposal of the association, and thus accommo- 
dations will be furnished for all sections and for general sessions in 
three closely adjoining buildings. 
The Local Committee, of which the governor of the Common- 
wealth is the honorary president, and thirty-one presidents of col- 
leges or scientific institutions are the honorary vice-presidents, 
includes over three hundred other prominent citizens of Boston and 
vicinity. This committee has been organized into special committees 
for the furtherance of the arrangements for the meetings, which are 
to be carried out in a generous and most cordial manner. 
The programme for the week as prepared by the permanent sec- 
retary, with the codperation of the Local Committee, is substantially 
as follows : 
Saturday, August 20. Meeting of the Council. 
Monday, August 22. General Session in Huntington Hall at 
10 A.M. President Gibbs will call the meeting to order and intro- 
duce the president-elect, Prof. F. W. Putnam. Addresses of wel- 
come by the governor, the mayor, and the president of the Institute 
of Technology. Reply of President Putnam. General business and 
adjournment of the session for the organization of the sections. In 
the afternoon the nine vice-presidents will deliver their addresses 
